Knowledge (XXG)

Three-dimensional space

Source 📝

1806: 576: 50: 5366:. Physical space can be modelled as a vector space which additionally has the structure of an inner product. The inner product defines notions of length and angle (and therefore in particular the notion of orthogonality). For any inner product, there exist bases under which the inner product agrees with the dot product, but again, there are many different possible bases, none of which are preferred. They differ from one another by a rotation, an element of the group of rotations 1792: 6320: 1927: 2325: 2303: 7968: 8626: 4225: 107: 1778: 2314: 2336: 6083: 7821: 2281: 6044: 8758: 2292: 2248: 2270: 2259: 7117: 5805: 4202: 6315:{\displaystyle \left({\frac {\partial F_{z}}{\partial y}}-{\frac {\partial F_{y}}{\partial z}}\right)\mathbf {i} +\left({\frac {\partial F_{x}}{\partial z}}-{\frac {\partial F_{z}}{\partial x}}\right)\mathbf {j} +\left({\frac {\partial F_{y}}{\partial x}}-{\frac {\partial F_{x}}{\partial y}}\right)\mathbf {k} .} 7660: 5540: 5227:
assumes a choice of basis, corresponding to a set of axes. But in rotational symmetry, there is no reason why one set of axes is preferred to say, the same set of axes which has been rotated arbitrarily. Stated another way, a preferred choice of axes breaks the rotational symmetry of physical space.
5197:
Physically, it is conceptually desirable to use the abstract formalism in order to assume as little structure as possible if it is not given by the parameters of a particular problem. For example, in a problem with rotational symmetry, working with the more concrete description of three-dimensional
1857:
Two distinct planes can either meet in a common line or are parallel (i.e., do not meet). Three distinct planes, no pair of which are parallel, can either meet in a common line, meet in a unique common point, or have no point in common. In the last case, the three lines of intersection of each pair
341:
dealt with three-dimensional geometry. Book XI develops notions of orthogonality and parallelism of lines and planes, and defines solids including parallelpipeds, pyramids, prisms, spheres, octahedra, icosahedra and dodecahedra. Book XII develops notions of similarity of solids. Book XIII describes
6843: 5900: 3936: 7536: 5060: 2686:, meaning that they can be made up from a family of straight lines. In fact, each has two families of generating lines, the members of each family are disjoint and each member one family intersects, with just one exception, every member of the other family. Each family is called a 6967: 4097: 3172: 1868:
is a subspace of one dimension less than the dimension of the full space. The hyperplanes of a three-dimensional space are the two-dimensional subspaces, that is, the planes. In terms of Cartesian coordinates, the points of a hyperplane satisfy a single
2922: 5698: 6608: 3844: 3057: 3265: 4901: 3424: 7577: 5438: 6039:{\displaystyle {\begin{vmatrix}\mathbf {i} &\mathbf {j} &\mathbf {k} \\\\{\frac {\partial }{\partial x}}&{\frac {\partial }{\partial y}}&{\frac {\partial }{\partial z}}\\\\F_{x}&F_{y}&F_{z}\end{vmatrix}}} 6406: 4567: 3686: 7817: 2117:
This 3-sphere is an example of a 3-manifold: a space which is 'looks locally' like 3-D space. In precise topological terms, each point of the 3-sphere has a neighborhood which is homeomorphic to an open subset of 3-D space.
3772: 6718: 7425: 5686: 5307:
over the real numbers. This is unique up to affine isomorphism. It is sometimes referred to as three-dimensional Euclidean space. Just as the vector space description came from 'forgetting the preferred basis' of
4803: 7417: 4617: 2664:
The degenerate quadric surfaces are the empty set, a single point, a single line, a single plane, a pair of planes or a quadratic cylinder (a surface consisting of a non-degenerate conic section in a plane
2544: 5866: 7112:{\displaystyle \iint _{S}f\,\mathrm {d} S=\iint _{T}f(\mathbf {x} (s,t))\left\|{\partial \mathbf {x} \over \partial s}\times {\partial \mathbf {x} \over \partial t}\right\|\mathrm {d} s\,\mathrm {d} t} 2706:
is independent of its width or breadth. In the technical language of linear algebra, space is three-dimensional because every point in space can be described by a linear combination of three independent
5430: 7339: 1873:, so planes in this 3-space are described by linear equations. A line can be described by a pair of independent linear equations—each representing a plane having this line as a common intersection. 7890: 4359: 524:
that these two products were identified in their own right, and the modern notation for the dot and cross product were introduced in his classroom teaching notes, found also in the 1901 textbook
3602: 1861:
A line can lie in a given plane, intersect that plane in a unique point, or be parallel to the plane. In the last case, there will be lines in the plane that are parallel to the given line.
5604: 4724: 4862: 3995: 2018: 7979:
Three-dimensional space has a number of topological properties that distinguish it from spaces of other dimension numbers. For example, at least three dimensions are required to tie a
4069: 3068: 293:. While this space remains the most compelling and useful way to model the world as it is experienced, it is only one example of a large variety of spaces in three dimensions called 4035: 8366:
If one requires only three basic properties of the cross product ... it turns out that a cross product of vectors exists only in 3-dimensional and 7-dimensional Euclidean space.
8023: 3719: 5800:{\displaystyle \operatorname {div} \,\mathbf {F} =\nabla \cdot \mathbf {F} ={\frac {\partial U}{\partial x}}+{\frac {\partial V}{\partial y}}+{\frac {\partial W}{\partial z}}.} 4197:{\displaystyle \mathbf {A} \times (\mathbf {B} \times \mathbf {C} )+\mathbf {B} \times (\mathbf {C} \times \mathbf {A} )+\mathbf {C} \times (\mathbf {A} \times \mathbf {B} )=0} 2781: 256: 7707: 5335: 5258: 5225: 5192: 5140: 5091: 4488: 4432: 4290: 2752: 1906: 6439: 7844: 4649: 2060: 4892: 4514: 4091: 3839: 3817: 449: 6328: 7261: 4217:
vectors to produce a vector perpendicular to all of them. But if the product is limited to non-trivial binary products with vector results, it exists only in three and
2954: 3795: 6673: 3202: 507: 7655:{\displaystyle \iint _{\Sigma }\nabla \times \mathbf {F} \cdot \mathrm {d} \mathbf {\Sigma } =\oint _{\partial \Sigma }\mathbf {F} \cdot \mathrm {d} \mathbf {r} .} 6496: 5305: 475: 3364: 8996: 5163: 5111: 4456: 4403: 4379: 4261: 5535:{\displaystyle \nabla f={\frac {\partial f}{\partial x}}\mathbf {i} +{\frac {\partial f}{\partial y}}\mathbf {j} +{\frac {\partial f}{\partial z}}\mathbf {k} } 5875: 3931:{\displaystyle \left\|\mathbf {A} \times \mathbf {B} \right\|=\left\|\mathbf {A} \right\|\cdot \left\|\mathbf {B} \right\|\cdot \left|\sin \theta \right|.} 1805: 8689: 4519: 1704: 5344:
This is physically appealing as it makes the translation invariance of physical space manifest. A preferred origin breaks the translational invariance.
3609: 375:(Introduction to Plane and Solid Loci), which was unpublished during Fermat's lifetime. However, only Fermat's work dealt with three-dimensional space. 7762: 6838:{\displaystyle \int \limits _{C}\mathbf {F} (\mathbf {r} )\cdot \,d\mathbf {r} =\int _{a}^{b}\mathbf {F} (\mathbf {r} (t))\cdot \mathbf {r} '(t)\,dt.} 3728: 7174:), the surface integral can be defined component-wise according to the definition of the surface integral of a scalar field; the result is a vector. 2377:
of the surface. A section of the surface, made by intersecting the surface with a plane that is perpendicular (orthogonal) to the axis, is a circle.
7531:{\displaystyle \varphi \left(\mathbf {q} \right)-\varphi \left(\mathbf {p} \right)=\int _{\gamma }\nabla \varphi (\mathbf {r} )\cdot d\mathbf {r} .} 5055:{\displaystyle E_{1}={\begin{pmatrix}1\\0\\0\end{pmatrix}},E_{2}={\begin{pmatrix}0\\1\\0\end{pmatrix}},E_{3}={\begin{pmatrix}0\\0\\1\end{pmatrix}}.} 2409: 2380:
Simple examples occur when the generatrix is a line. If the generatrix line intersects the axis line, the surface of revolution is a right circular
5817: 8095: 5639: 8609: 8583: 8546: 8526: 8446: 7356: 7350: 2725:
A vector can be pictured as an arrow. The vector's magnitude is its length, and its direction is the direction the arrow points. A vector in
2384:
with vertex (apex) the point of intersection. However, if the generatrix and axis are parallel, then the surface of revolution is a circular
804: 4732: 8273: 8122: 7373: 71: 8991: 4572: 8792: 8981: 8742: 8565: 8501: 8471: 5554: 770: 395: 93: 4808: 8107: 5392: 1974: 4218: 477:. While not explicitly studied by Hamilton, this indirectly introduced notions of basis, here given by the quaternion elements 7269: 1791: 8682: 7190: 5337:, the affine space description comes from 'forgetting the origin' of the vector space. Euclidean spaces are sometimes called 1753:
measured along the given axis, which is equal to the distance of that point from the plane determined by the other two axes.
1697: 1651: 1257: 716: 187: 7849: 5883: 5811: 4295: 1797: 273:, this space is called the three-dimensional Euclidean space (or simply "Euclidean space" when the context is clear). In 6926: 2329: 2307: 1721:(also called Cartesian geometry) describes every point in three-dimensional space by means of three coordinates. Three 8777: 6958: 5879: 5871: 3433: 1811: 1783: 517:, which correspond to (the negative of) the scalar part and the vector part of the product of two vector quaternions. 263: 111: 5093:
can be viewed as the abstract vector space, together with the additional structure of a choice of basis. Conversely,
64: 58: 8986: 8494: 4654: 2023: 1672: 1282: 3167:{\displaystyle \|\mathbf {A} \|={\sqrt {\mathbf {A} \cdot \mathbf {A} }}={\sqrt {A_{1}^{2}+A_{2}^{2}+A_{3}^{2}}},} 8675: 8412: 8204: 8155: 2643: 1690: 3959: 1745:. Relative to these axes, the position of any point in three-dimensional space is given by an ordered triple of 75: 8712: 8661: 4044: 2638: 2626: 2157: 2137: 659: 8920: 8915: 7123: 6918: 4037:. In order to satisfy the axioms of a Lie algebra, instead of associativity the cross product satisfies the 1757: 765: 622: 537:
Also during the 19th century came developments in the abstract formalism of vector spaces, with the work of
2406:, the set of points whose Cartesian coordinates satisfy the general equation of the second degree, namely, 8905: 8900: 8880: 8486: 8253: 8112: 7217: 4435: 2917:{\displaystyle \mathbf {A} \cdot \mathbf {B} =A_{1}B_{1}+A_{2}B_{2}+A_{3}B_{3}=\sum _{i=1}^{3}A_{i}B_{i}.} 1851: 1777: 1161: 872: 750: 635: 379: 4004: 8910: 8890: 8885: 7997: 7987: 3691: 2658: 2368: 2354: 1761: 933: 894: 853: 848: 701: 350: 213: 1946:
because it is a 2-dimensional object) consists of the set of all points in 3-space at a fixed distance
1876: 229: 7683: 5311: 5234: 5201: 5168: 5116: 5067: 4464: 4408: 4266: 3184:
Without reference to the components of the vectors, the dot product of two non-zero Euclidean vectors
2728: 1882: 1550: 1297: 8132: 8102: 6411: 5689: 3941: 2185: 2169: 1750: 1726: 1601: 1524: 1372: 1277: 799: 694: 608: 531: 521: 387: 338: 8630: 7827: 1854:, lie in a unique plane, so skew lines are lines that do not meet and do not lie in a common plane. 9001: 8787: 8782: 8257: 8050: 6861: 5353: 4622: 2653: 2385: 2177: 2164: 1606: 1463: 1317: 1222: 1112: 983: 973: 836: 711: 706: 689: 664: 652: 604: 599: 580: 153: 38: 4867: 4497: 4074: 3822: 3800: 3052:{\displaystyle \mathbf {A} \cdot \mathbf {A} =\|\mathbf {A} \|^{2}=A_{1}^{2}+A_{2}^{2}+A_{3}^{2},} 575: 545:, the latter of whom first gave the modern definition of vector spaces as an algebraic structure. 401: 297:. In this classical example, when the three values refer to measurements in different directions ( 8961: 8802: 8757: 8357: 8078: 7752: 7671: 7560: 7131: 6902: 6442: 5278:
A more abstract description still is to model physical space as a three-dimensional affine space
3956:
with the cross product being the Lie bracket. Specifically, the space together with the product,
3722: 2687: 2381: 2360: 2318: 2239: 1957: 1565: 1292: 1132: 760: 684: 674: 645: 630: 143: 7552: 7547: 5142:
and 'forgetting' the Cartesian product structure, or equivalently the standard choice of basis.
2702:, where the idea of independence is crucial. Space has three dimensions because the length of a 363: 7222: 1756:
Other popular methods of describing the location of a point in three-dimensional space include
8797: 8643: 8640: 8605: 8579: 8561: 8542: 8522: 8497: 8467: 8442: 8269: 8261: 7367:
field can be evaluated by evaluating the original scalar field at the endpoints of the curve.
7205: 6910: 6909:
analog of the line integral. To find an explicit formula for the surface integral, we need to
6898: 4491: 3347: 3260:{\displaystyle \mathbf {A} \cdot \mathbf {B} =\|\mathbf {A} \|\,\|\mathbf {B} \|\cos \theta ,} 2708: 2340: 1718: 1636: 1626: 1555: 1424: 1402: 1352: 1327: 1262: 1186: 841: 733: 679: 640: 559: 538: 358: 354: 298: 286: 274: 6603:{\displaystyle \int \limits _{C}f\,ds=\int _{a}^{b}f(\mathbf {r} (t))|\mathbf {r} '(t)|\,dt.} 3780: 301:), any three directions can be chosen, provided that these directions do not lie in the same 8727: 8597: 8534: 8349: 8062: 7905: 7556: 6893: 6652: 6479: 3319: 3315: 3178: 2324: 2302: 1832: 1616: 1357: 1067: 945: 880: 738: 723: 588: 391: 368: 302: 157: 3419:{\displaystyle \times :\mathbb {R} ^{3}\times \mathbb {R} ^{3}\rightarrow \mathbb {R} ^{3}} 1926: 480: 8772: 8717: 8046: 8034: 7897: 7179: 6906: 5379: 5281: 5273: 4895: 4038: 3323: 2397: 1870: 1824: 1765: 1722: 1039: 912: 902: 745: 728: 669: 526: 165: 4243:
It can be useful to describe three-dimensional space as a three-dimensional vector space
1611: 1580: 1514: 1484: 1362: 1307: 1302: 1242: 454: 9006: 8854: 8839: 8340:
Massey, WS (1983). "Cross products of vectors in higher dimensional Euclidean spaces".
8127: 7967: 7924: 7724: 7147: 5546: 5148: 5096: 4727: 4441: 4388: 4364: 4246: 2699: 2223: 2152: 2133: 1667: 1641: 1575: 1519: 1392: 1272: 1252: 1232: 1137: 542: 378:
In the 19th century, developments of the geometry of three-dimensional space came with
343: 173: 8625: 2754:
can be represented by an ordered triple of real numbers. These numbers are called the
2679:). Elliptic cones are sometimes considered to be degenerate quadric surfaces as well. 8975: 8844: 8553: 8229: 7720: 7568: 7360: 7127: 6474: 5363: 3343: 3307: 3301: 2683: 2648: 2403: 2195: 1931: 1909: 1843: 1646: 1631: 1560: 1377: 1337: 1287: 1062: 1025: 992: 830: 826: 514: 306: 4224: 2062:
Another type of sphere arises from a 4-ball, whose three-dimensional surface is the
8864: 8829: 8722: 8054: 7564: 6679: 6454: 6401:{\displaystyle (\nabla \times \mathbf {F} )_{i}=\epsilon _{ijk}\partial _{j}F_{k},} 5609: 5269: 4562:{\displaystyle \mathbb {R} ^{3}=\mathbb {R} \times \mathbb {R} \times \mathbb {R} } 4238: 2285: 1585: 1534: 1347: 1202: 1117: 907: 192: 7972: 3681:{\displaystyle (\mathbf {A} \times \mathbf {B} )_{i}=\varepsilon _{ijk}A_{j}B_{k}} 106: 8180: 7812:{\displaystyle \iiint _{V}\left(\mathbf {\nabla } \cdot \mathbf {F} \right)\,dV=} 17: 8949: 8732: 8090: 7980: 6849: 6062: 5389:
In a rectangular coordinate system, the gradient of a (differentiable) function
5359: 4382: 3953: 3949: 3945: 3767:{\displaystyle \mathbf {A} \times \mathbf {B} =-\mathbf {B} \times \mathbf {A} } 3355: 2720: 2313: 2296: 2252: 1746: 1621: 1494: 1312: 1247: 1175: 1147: 1122: 510: 383: 209: 178: 148: 2335: 8944: 8824: 8601: 8117: 8070: 8042: 7991: 3998: 3606:
and can also be written in components, using Einstein summation convention as
2373: 2274: 2127: 1865: 1847: 1479: 1458: 1448: 1438: 1397: 1342: 1237: 1227: 1127: 978: 294: 290: 8925: 8834: 8747: 8698: 8657: 8648: 7195: 6622: 5231:
Computationally, it is necessary to work with the more concrete description
2633: 1828: 1489: 1207: 1170: 1034: 1006: 169: 7747:
is a continuously differentiable vector field defined on a neighborhood of
8156:"IEC 60050 — Details for IEV number 102-04-39: "three-dimensional domain"" 2280: 8849: 8812: 8737: 7364: 7184: 5681:{\displaystyle \mathbf {F} :\mathbb {R} ^{3}\rightarrow \mathbb {R} ^{3}} 1836: 1764:, though there are an infinite number of possible methods. For more, see 1570: 1529: 1499: 1387: 1382: 1332: 1057: 1016: 964: 858: 821: 567: 278: 123: 2291: 2247: 2114:
characterizes those points on the unit 3-sphere centered at the origin.
8859: 8361: 8038: 3351: 3350:
to the plane containing them. It has many applications in mathematics,
2269: 2258: 2132:
In three dimensions, there are nine regular polytopes: the five convex
1504: 1217: 1011: 955: 755: 4798:{\displaystyle {\mathcal {B}}_{\text{Standard}}=\{E_{1},E_{2},E_{3}\}} 30:
For a broader, less mathematical treatment related to this topic, see
7200: 6930: 2703: 1939: 1921: 1453: 1443: 1322: 1267: 1142: 1105: 1093: 1048: 1001: 919: 584: 325: 318: 282: 8353: 7412:{\displaystyle \varphi :U\subseteq \mathbb {R} ^{n}\to \mathbb {R} } 2682:
Both the hyperboloid of one sheet and the hyperbolic paraboloid are
1835:. On the other hand, four distinct points can either be collinear, 8816: 7965: 6698: 5367: 4223: 3277: 2364: 1925: 1509: 1433: 1367: 1212: 816: 811: 311: 200: 105: 31: 8658:
Elementary Linear Algebra - Chapter 8: Three-dimensional Geometry
4612:{\displaystyle \pi _{i}:\mathbb {R} ^{3}\rightarrow \mathbb {R} } 398:. Three dimensional space could then be described by quaternions 7122:
where the expression between bars on the right-hand side is the
4228:
The cross-product in respect to a right-handed coordinate system
2263: 1100: 950: 349:
In the 17th century, three-dimensional space was described with
182:. The term may also refer colloquially to a subset of space, a 8671: 8574:
Brannan, David A.; Esplen, Matthew F.; Gray, Jeremy J. (1999),
7198:
is trivial (unity), the volume integral is simply the region's
6325:
In index notation, with Einstein summation convention this is
2539:{\displaystyle Ax^{2}+By^{2}+Cz^{2}+Fxy+Gyz+Hxz+Jx+Ky+Lz+M=0,} 43: 5861:{\displaystyle \nabla \cdot \mathbf {F} =\partial _{i}F_{i}.} 8667: 4739: 4438:. However, there is no 'preferred' or 'canonical basis' for 4301: 4001:
to the Lie algebra of three-dimensional rotations, denoted
2698:
Another way of viewing three-dimensional space is found in
7933:
is the outward pointing unit normal field of the boundary
5425:{\displaystyle f:\mathbb {R} ^{3}\rightarrow \mathbb {R} } 2066:: points equidistant to the origin of the euclidean space 1729:, the point at which they cross. They are usually labeled 1749:, each number giving the distance of that point from the 8413:"IEC 60050 — Details for IEV number 102-04-40: "volume"" 7334:{\displaystyle \iiint \limits _{D}f(x,y,z)\,dx\,dy\,dz.} 289:
is considered, it can be considered a local subspace of
37:"Three-dimensional" redirects here. For other uses, see 4569:. This allows the definition of canonical projections, 2367:
about a fixed line in its plane as an axis is called a
7831: 5909: 5341:
for distinguishing them from Euclidean vector spaces.
5021: 4972: 4923: 3361:
In function language, the cross product is a function
1725:
are given, each perpendicular to the other two at the
8441:. Schaum's Outlines (2nd ed.). US: McGraw Hill. 8045:
as its 2-dimensional subspaces. It is an instance of
8000: 7885:{\displaystyle (\mathbf {F} \cdot \mathbf {n} )\,dS.} 7852: 7830: 7765: 7686: 7580: 7428: 7376: 7272: 7225: 6970: 6721: 6655: 6499: 6414: 6331: 6086: 5903: 5820: 5701: 5642: 5557: 5441: 5395: 5314: 5284: 5237: 5204: 5171: 5151: 5119: 5099: 5070: 4904: 4870: 4811: 4735: 4657: 4625: 4575: 4522: 4500: 4467: 4444: 4411: 4391: 4367: 4298: 4292:
in a subtle way. By definition, there exists a basis
4269: 4249: 4100: 4077: 4047: 4007: 3962: 3847: 3825: 3803: 3783: 3731: 3694: 3612: 3436: 3367: 3205: 3071: 2957: 2784: 2731: 2412: 2026: 1977: 1885: 483: 457: 404: 232: 4354:{\displaystyle {\mathcal {B}}=\{e_{1},e_{2},e_{3}\}} 8937: 8873: 8811: 8765: 8705: 7567:F over a surface Σ in Euclidean three-space to the 3326:and is denoted by the symbol ×. The cross product 176:. More general three-dimensional spaces are called 8017: 7884: 7838: 7811: 7701: 7654: 7530: 7411: 7333: 7255: 7111: 6837: 6667: 6602: 6433: 6400: 6314: 6038: 5860: 5799: 5680: 5598: 5534: 5424: 5329: 5299: 5252: 5219: 5186: 5157: 5134: 5105: 5085: 5054: 4886: 4856: 4797: 4718: 4643: 4611: 4561: 4508: 4482: 4461:On the other hand, there is a preferred basis for 4450: 4426: 4397: 4373: 4353: 4284: 4255: 4196: 4085: 4063: 4029: 3989: 3930: 3833: 3811: 3789: 3766: 3713: 3680: 3596: 3418: 3259: 3166: 3051: 2916: 2746: 2538: 2054: 2012: 1900: 1879:states that the midpoints of any quadrilateral in 1823:Two distinct points always determine a (straight) 501: 469: 443: 309:, the three values are often labeled by the terms 250: 8437:M. R. Spiegel; S. Lipschutz; D. Spellman (2009). 8303: 8291: 1771:Below are images of the above-mentioned systems. 5194:is sometimes referred to as a coordinate space. 4434:: the construction for the isomorphism is found 3597:{\displaystyle \mathbf {A} \times \mathbf {B} =} 386:. In fact, it was Hamilton who coined the terms 305:. Furthermore, if these directions are pairwise 8181:"Euclidean space - Encyclopedia of Mathematics" 1956:. The solid enclosed by the sphere is called a 451:which had vanishing scalar component, that is, 222:-dimensional Euclidean space. The set of these 8069:) of three dimensions. For example, any three 6077:-axes, respectively. This expands as follows: 5599:{\displaystyle (\nabla f)_{i}=\partial _{i}f.} 258:and can be identified to the pair formed by a 8683: 8541:, Academic Press; 6 edition (June 21, 2005). 6697:, the line integral along a piecewise smooth 4898:. Written out in full, the standard basis is 4719:{\displaystyle \pi _{1}(x_{1},x_{2},x_{3})=x} 1698: 8: 5876:Del in cylindrical and spherical coordinates 4857:{\displaystyle \pi _{i}(E_{j})=\delta _{ij}} 4792: 4753: 4348: 4309: 3242: 3234: 3230: 3222: 3080: 3072: 2983: 2974: 1842:Two distinct lines can either intersect, be 8466:. Berkeley, California: Publish or Perish. 8205:"Details for IEV number 113-01-02: "space"" 8033:Many ideas of dimension can be tested with 8690: 8676: 8668: 8150: 8148: 7719:represents a volume in 3D space) which is 7571:of the vector field over its boundary ∂Σ: 7158:, that is a function that assigns to each 5886:coordinate representations), the curl ∇ × 5358:The above discussion does not involve the 3990:{\displaystyle (\mathbb {R} ^{3},\times )} 2013:{\displaystyle V={\frac {4}{3}}\pi r^{3},} 1705: 1691: 1420: 939: 574: 563: 8417:International Electrotechnical Vocabulary 8287: 8285: 8209:International Electrotechnical Vocabulary 8160:International Electrotechnical Vocabulary 8009: 8004: 8003: 8002: 7999: 7990:the generic three-dimensional spaces are 7872: 7864: 7856: 7851: 7829: 7799: 7789: 7781: 7770: 7764: 7693: 7689: 7688: 7685: 7644: 7639: 7631: 7622: 7610: 7605: 7597: 7585: 7579: 7520: 7506: 7487: 7486: 7478: 7471: 7455: 7436: 7427: 7405: 7404: 7395: 7391: 7390: 7375: 7321: 7314: 7307: 7277: 7271: 7224: 7101: 7100: 7092: 7071: 7065: 7046: 7040: 7012: 7000: 6985: 6984: 6975: 6969: 6961:. Then, the surface integral is given by 6825: 6807: 6786: 6778: 6772: 6767: 6755: 6751: 6740: 6732: 6726: 6720: 6654: 6590: 6585: 6567: 6561: 6544: 6532: 6527: 6513: 6504: 6498: 6441:is the totally antisymmetric symbol, the 6419: 6413: 6389: 6379: 6363: 6350: 6341: 6330: 6304: 6282: 6272: 6252: 6242: 6229: 6207: 6197: 6177: 6167: 6154: 6132: 6122: 6102: 6092: 6085: 6022: 6010: 5998: 5972: 5955: 5938: 5926: 5919: 5912: 5904: 5902: 5849: 5839: 5827: 5819: 5774: 5751: 5728: 5720: 5706: 5705: 5700: 5672: 5668: 5667: 5657: 5653: 5652: 5643: 5641: 5584: 5571: 5556: 5527: 5507: 5499: 5479: 5471: 5451: 5440: 5418: 5417: 5408: 5404: 5403: 5394: 5321: 5317: 5316: 5313: 5283: 5244: 5240: 5239: 5236: 5211: 5207: 5206: 5203: 5178: 5174: 5173: 5170: 5150: 5126: 5122: 5121: 5118: 5098: 5077: 5073: 5072: 5069: 5016: 5007: 4967: 4958: 4918: 4909: 4903: 4875: 4869: 4845: 4829: 4816: 4810: 4786: 4773: 4760: 4744: 4738: 4737: 4734: 4726:. This then allows the definition of the 4701: 4688: 4675: 4662: 4656: 4624: 4605: 4604: 4595: 4591: 4590: 4580: 4574: 4555: 4554: 4547: 4546: 4539: 4538: 4529: 4525: 4524: 4521: 4502: 4501: 4499: 4474: 4470: 4469: 4466: 4443: 4418: 4414: 4413: 4410: 4390: 4366: 4342: 4329: 4316: 4300: 4299: 4297: 4276: 4272: 4271: 4268: 4263:over the real numbers. This differs from 4248: 4180: 4172: 4161: 4150: 4142: 4131: 4120: 4112: 4101: 4099: 4078: 4076: 4064:{\displaystyle \mathbf {A} ,\mathbf {B} } 4056: 4048: 4046: 4009: 4008: 4006: 3972: 3968: 3967: 3961: 3894: 3878: 3861: 3853: 3846: 3826: 3824: 3804: 3802: 3782: 3759: 3751: 3740: 3732: 3730: 3699: 3693: 3672: 3662: 3646: 3633: 3624: 3616: 3611: 3585: 3575: 3562: 3552: 3539: 3529: 3516: 3506: 3493: 3483: 3470: 3460: 3445: 3437: 3435: 3410: 3406: 3405: 3395: 3391: 3390: 3380: 3376: 3375: 3366: 3237: 3233: 3225: 3214: 3206: 3204: 3153: 3148: 3135: 3130: 3117: 3112: 3106: 3096: 3088: 3086: 3075: 3070: 3040: 3035: 3022: 3017: 3004: 2999: 2986: 2977: 2966: 2958: 2956: 2905: 2895: 2885: 2874: 2861: 2851: 2838: 2828: 2815: 2805: 2793: 2785: 2783: 2738: 2734: 2733: 2730: 2452: 2436: 2420: 2411: 2043: 2025: 2001: 1984: 1976: 1892: 1888: 1887: 1884: 482: 456: 403: 239: 235: 234: 231: 94:Learn how and when to remove this message 8266:Calculus : Single and Multivariable 3429:The components of the cross product are 2142: 110:A representation of a three-dimensional 57:This article includes a list of general 8521:(7th ed.), John Wiley & Sons, 8144: 8096:Rotation formalisms in three dimensions 4490:, which is due to its description as a 1773: 1659: 1593: 1542: 1471: 1423: 1185: 1047: 1024: 991: 963: 566: 396:his geometric framework for quaternions 277:, it serves as a model of the physical 8390: 5362:. The dot product is an example of an 5260:in order to do concrete computations. 3777:Its magnitude is related to the angle 2675:through that conic that are normal to 2144:Regular polytopes in three dimensions 2020:and the surface area of the sphere is 805:Straightedge and compass constructions 8327: 8315: 7357:fundamental theorem of line integrals 7351:Fundamental theorem of line integrals 7345:Fundamental theorem of line integrals 5608:The divergence of a (differentiable) 5145:As opposed to a general vector space 394:, and they were first defined within 342:the construction of the five regular 27:Geometric model of the physical space 7: 8997:Three-dimensional coordinate systems 8378: 8539:Mathematical Methods For Physicists 7919:is quite generally the boundary of 6449:Line, surface, and volume integrals 4030:{\displaystyle {\mathfrak {so}}(3)} 4013: 4010: 1969:The volume of the ball is given by 1827:. Three distinct points are either 262:-dimensional Euclidean space and a 118:-axis pointing towards the observer 8018:{\displaystyle {\mathbb {R} }^{3}} 7782: 7640: 7626: 7623: 7606: 7591: 7586: 7497: 7102: 7093: 7078: 7068: 7053: 7043: 6986: 6376: 6335: 6290: 6275: 6260: 6245: 6215: 6200: 6185: 6170: 6140: 6125: 6110: 6095: 5978: 5974: 5961: 5957: 5944: 5940: 5836: 5821: 5785: 5777: 5762: 5754: 5739: 5731: 5714: 5581: 5561: 5518: 5510: 5490: 5482: 5462: 5454: 5442: 3714:{\displaystyle \varepsilon _{ijk}} 373:Ad locos planos et solidos isagoge 63:it lacks sufficient corresponding 25: 8342:The American Mathematical Monthly 6933:. Let such a parameterization be 5113:can be obtained by starting with 1858:of planes are mutually parallel. 1839:, or determine the entire space. 771:Noncommutative algebraic geometry 251:{\displaystyle \mathbb {R} ^{n},} 162:three-dimensional Euclidean space 8756: 8624: 8108:Distance from a point to a plane 8057:. Thus, for any Galois field GF( 7908:over the boundary of the volume 7865: 7857: 7819: 7790: 7702:{\displaystyle \mathbb {R} ^{n}} 7645: 7632: 7611: 7598: 7521: 7507: 7488: 7479: 7456: 7437: 7072: 7047: 7013: 6808: 6787: 6779: 6756: 6741: 6733: 6568: 6545: 6342: 6305: 6230: 6155: 5927: 5920: 5913: 5828: 5721: 5707: 5644: 5528: 5500: 5472: 5330:{\displaystyle \mathbb {R} ^{3}} 5253:{\displaystyle \mathbb {R} ^{3}} 5220:{\displaystyle \mathbb {R} ^{3}} 5187:{\displaystyle \mathbb {R} ^{3}} 5135:{\displaystyle \mathbb {R} ^{3}} 5086:{\displaystyle \mathbb {R} ^{3}} 4483:{\displaystyle \mathbb {R} ^{3}} 4427:{\displaystyle \mathbb {R} ^{3}} 4285:{\displaystyle \mathbb {R} ^{3}} 4181: 4173: 4162: 4151: 4143: 4132: 4121: 4113: 4102: 4079: 4057: 4049: 3895: 3879: 3862: 3854: 3827: 3805: 3760: 3752: 3741: 3733: 3625: 3617: 3446: 3438: 3238: 3226: 3215: 3207: 3097: 3089: 3076: 2978: 2967: 2959: 2794: 2786: 2747:{\displaystyle \mathbb {R} ^{3}} 2590:are real numbers and not all of 2371:. The plane curve is called the 2334: 2323: 2312: 2301: 2290: 2279: 2268: 2257: 2246: 1901:{\displaystyle \mathbb {R} ^{3}} 1804: 1790: 1776: 152:) are required to determine the 48: 8304:Brannan, Esplen & Gray 1999 8292:Brannan, Esplen & Gray 1999 8077:) are contained in exactly one 7949:may be used as a shorthand for 7146:), and is known as the surface 6434:{\displaystyle \epsilon _{ijk}} 4210:dimensions take the product of 2761:The dot product of two vectors 2363:generated by revolving a plane 1934:of a sphere onto two dimensions 8578:, Cambridge University Press, 7869: 7853: 7839:{\displaystyle \scriptstyle S} 7511: 7503: 7492: 7475: 7401: 7304: 7286: 7247: 7229: 7088: 7036: 7032: 7029: 7017: 7009: 6905:. It can be thought of as the 6822: 6816: 6800: 6797: 6791: 6783: 6745: 6737: 6586: 6582: 6576: 6562: 6558: 6555: 6549: 6541: 6347: 6332: 5663: 5568: 5558: 5414: 5294: 5288: 4835: 4822: 4707: 4668: 4601: 4185: 4169: 4155: 4139: 4125: 4109: 4024: 4018: 3984: 3963: 3940:The space and product form an 3899: 3891: 3883: 3875: 3867: 3849: 3630: 3613: 3591: 3453: 3401: 2941:. The dot product of a vector 2715:Dot product, angle, and length 2072:. If a point has coordinates, 1164:- / other-dimensional 1: 8629:The dictionary definition of 7923:oriented by outward-pointing 6917:, by considering a system of 6625:parametrization of the curve 5812:Einstein summation convention 5385:Gradient, divergence and curl 4644:{\displaystyle 1\leq i\leq 3} 2055:{\displaystyle A=4\pi r^{2}.} 1798:Cylindrical coordinate system 8230:"Euclidean space | geometry" 4887:{\displaystyle \delta _{ij}} 4509:{\displaystyle \mathbb {R} } 4086:{\displaystyle \mathbf {C} } 3834:{\displaystyle \mathbf {B} } 3812:{\displaystyle \mathbf {A} } 2237: 2221: 2147: 444:{\displaystyle q=a+ui+vj+wk} 226:-tuples is commonly denoted 8644:"Four-Dimensional Geometry" 8489:& Ute Rosenbaum (1998) 8037:. The simplest instance is 7263:and is usually written as: 3725:. It has the property that 1812:Spherical coordinate system 1784:Cartesian coordinate system 264:Cartesian coordinate system 160:. Most commonly, it is the 112:Cartesian coordinate system 9023: 8992:Multi-dimensional geometry 8596:(3rd ed.), Springer, 8495:Cambridge University Press 8268:(6 ed.). John wiley. 8118:Skew lines § Distance 7669: 7545: 7348: 5377: 5351: 5267: 4236: 3299: 2927:The magnitude of a vector 2718: 2395: 2352: 2125: 1942:in 3-space (also called a 1919: 1912:, and hence are coplanar. 557: 534:based on Gibbs' lectures. 36: 29: 8958: 8754: 8602:10.1007/978-1-4757-1949-9 8519:Elementary Linear Algebra 7994:, which locally resemble 7256:{\displaystyle f(x,y,z),} 6913:the surface of interest, 4381:. This corresponds to an 2644:Hyperboloid of two sheets 2233: 2230: 2213: 2206: 2184: 2176: 2156: 2151: 1850:. Two parallel lines, or 212:can be understood as the 8982:Euclidean solid geometry 8662:University of Queensland 7904:, the right side is the 6953:) varies in some region 6884:) give the endpoints of 6645:) give the endpoints of 5810:In index notation, with 4041:. For any three vectors 2639:Hyperboloid of one sheet 2158:Kepler-Poinsot polyhedra 2138:Kepler-Poinsot polyhedra 660:Non-Archimedean geometry 184:three-dimensional region 8254:Hughes-Hallett, Deborah 8234:Encyclopedia Britannica 8123:Three-dimensional graph 7150:. Given a vector field 6919:curvilinear coordinates 6897:is a generalization of 5339:Euclidean affine spaces 3790:{\displaystyle \theta } 2625:There are six types of 2136:and the four nonconvex 1758:cylindrical coordinates 766:Noncommutative geometry 146:in which three values ( 128:three-dimensional space 78:more precise citations. 8517:Anton, Howard (1994), 8487:Albrecht Beutelspacher 8462:Rolfsen, Dale (1976). 8185:encyclopediaofmath.org 8113:Four-dimensional space 8019: 7983:in a piece of string. 7976: 7912:. The closed manifold 7886: 7840: 7813: 7703: 7656: 7541: 7532: 7413: 7335: 7257: 7113: 6927:latitude and longitude 6839: 6708:, in the direction of 6669: 6668:{\displaystyle a<b} 6604: 6435: 6402: 6316: 6040: 5862: 5801: 5682: 5636:, that is, a function 5600: 5536: 5426: 5331: 5301: 5254: 5221: 5188: 5159: 5136: 5107: 5087: 5056: 4888: 4858: 4799: 4720: 4645: 4613: 4563: 4510: 4484: 4452: 4428: 4399: 4375: 4355: 4286: 4257: 4229: 4198: 4087: 4065: 4031: 3991: 3932: 3835: 3813: 3791: 3768: 3715: 3682: 3598: 3420: 3346:to both and therefore 3261: 3168: 3053: 2918: 2890: 2748: 2618:are zero, is called a 2540: 2349:Surfaces of revolution 2056: 2014: 1962:(or, more precisely a 1935: 1932:perspective projection 1902: 1852:two intersecting lines 1831:or determine a unique 734:Discrete/Combinatorial 503: 471: 445: 382:'s development of the 380:William Rowan Hamilton 252: 119: 8020: 7988:differential geometry 7971: 7887: 7841: 7814: 7730:(also indicated with 7704: 7657: 7533: 7414: 7336: 7258: 7204:. It can also mean a 7114: 6840: 6670: 6605: 6436: 6403: 6317: 6041: 5872:Cartesian coordinates 5863: 5802: 5683: 5601: 5537: 5427: 5332: 5302: 5255: 5222: 5189: 5160: 5137: 5108: 5088: 5057: 4889: 4859: 4800: 4721: 4646: 4614: 4564: 4511: 4485: 4453: 4429: 4400: 4376: 4356: 4287: 4258: 4227: 4199: 4088: 4066: 4032: 3992: 3933: 3836: 3814: 3792: 3769: 3716: 3683: 3599: 3421: 3322:in three-dimensional 3262: 3169: 3054: 2919: 2870: 2749: 2669:and all the lines of 2659:Hyperbolic paraboloid 2541: 2369:surface of revolution 2355:Surface of revolution 2057: 2015: 1952:from a central point 1929: 1903: 1762:spherical coordinates 717:Discrete differential 549:In Euclidean geometry 504: 502:{\displaystyle i,j,k} 472: 446: 353:, with the advent of 351:Cartesian coordinates 281:, in which all known 253: 214:Cartesian coordinates 140:tri-dimensional space 109: 8874:Dimensions by number 8660:Keith Matthews from 8592:Lang, Serge (1987), 8560:, Berlin: Springer, 8258:McCallum, William G. 8133:Terms of orientation 8103:Dimensional analysis 7998: 7975:'s globe logo in 3-D 7850: 7828: 7763: 7723:and has a piecewise 7684: 7578: 7426: 7374: 7270: 7223: 7194:or region. When the 6968: 6901:to integration over 6719: 6653: 6497: 6412: 6329: 6084: 5901: 5818: 5699: 5640: 5555: 5439: 5393: 5312: 5300:{\displaystyle E(3)} 5282: 5235: 5202: 5169: 5149: 5117: 5097: 5068: 4902: 4868: 4809: 4733: 4655: 4623: 4573: 4520: 4498: 4465: 4442: 4409: 4389: 4365: 4296: 4267: 4247: 4233:Abstract description 4098: 4075: 4045: 4005: 3960: 3942:algebra over a field 3845: 3823: 3801: 3781: 3729: 3692: 3610: 3434: 3365: 3342:is a vector that is 3203: 3177:the formula for the 3069: 2955: 2782: 2729: 2410: 2402:In analogy with the 2024: 1975: 1883: 532:Edwin Bidwell Wilson 522:Josiah Willard Gibbs 481: 455: 402: 337:Books XI to XIII of 230: 172:three, which models 8537:and Hans J. Weber. 8491:Projective Geometry 8051:projective geometry 7896:The left side is a 7132:partial derivatives 6777: 6537: 5354:inner product space 5348:Inner product space 3158: 3140: 3122: 3045: 3027: 3009: 2654:Elliptic paraboloid 2145: 984:Pythagorean theorem 470:{\displaystyle a=0} 216:of a location in a 39:3D (disambiguation) 8803:Degrees of freedom 8706:Dimensional spaces 8641:Weisstein, Eric W. 8262:Gleason, Andrew M. 8029:In finite geometry 8015: 7977: 7882: 7836: 7835: 7809: 7753:divergence theorem 7699: 7672:Divergence theorem 7666:Divergence theorem 7652: 7528: 7409: 7331: 7282: 7253: 7189:three-dimensional 7109: 6899:multiple integrals 6835: 6763: 6731: 6665: 6600: 6523: 6509: 6443:Levi-Civita symbol 6431: 6398: 6312: 6036: 6030: 5858: 5797: 5692:-valued function: 5688:, is equal to the 5678: 5596: 5532: 5422: 5327: 5297: 5264:Affine description 5250: 5217: 5184: 5155: 5132: 5103: 5083: 5052: 5043: 4994: 4945: 4884: 4854: 4795: 4716: 4641: 4609: 4559: 4506: 4480: 4448: 4424: 4395: 4371: 4351: 4282: 4253: 4230: 4194: 4083: 4061: 4027: 3987: 3928: 3831: 3809: 3787: 3764: 3723:Levi-Civita symbol 3711: 3678: 3594: 3416: 3257: 3164: 3144: 3126: 3108: 3049: 3031: 3013: 2995: 2914: 2744: 2629:quadric surfaces: 2536: 2143: 2052: 2010: 1936: 1898: 1877:Varignon's theorem 554:Coordinate systems 499: 467: 441: 371:in the manuscript 248: 144:mathematical space 120: 8987:Analytic geometry 8969: 8968: 8778:Lebesgue covering 8743:Algebraic variety 8632:three-dimensional 8611:978-1-4757-1949-9 8585:978-0-521-59787-6 8547:978-0-12-059876-2 8535:Arfken, George B. 8528:978-0-471-58742-2 8448:978-0-07-161545-7 7273: 7085: 7060: 6722: 6500: 6297: 6267: 6222: 6192: 6147: 6117: 5985: 5968: 5951: 5792: 5769: 5746: 5525: 5497: 5469: 5158:{\displaystyle V} 5106:{\displaystyle V} 4747: 4492:Cartesian product 4451:{\displaystyle V} 4398:{\displaystyle V} 4374:{\displaystyle V} 4256:{\displaystyle V} 3159: 3101: 2694:In linear algebra 2346: 2345: 1992: 1916:Spheres and balls 1719:analytic geometry 1715: 1714: 1680: 1679: 1403:List of geometers 1086:Three-dimensional 1075: 1074: 560:Coordinate system 539:Hermann Grassmann 520:It was not until 509:, as well as the 355:analytic geometry 339:Euclid's Elements 287:relativity theory 275:classical physics 104: 103: 96: 18:Three-dimensional 16:(Redirected from 9014: 8766:Other dimensions 8760: 8728:Projective space 8692: 8685: 8678: 8669: 8654: 8653: 8628: 8614: 8588: 8570: 8531: 8504: 8484: 8478: 8477: 8459: 8453: 8452: 8434: 8428: 8427: 8425: 8424: 8409: 8403: 8400: 8394: 8388: 8382: 8375: 8369: 8368: 8337: 8331: 8325: 8319: 8313: 8307: 8306:, pp. 41–42 8301: 8295: 8294:, pp. 34–35 8289: 8280: 8279: 8275:978-0470-88861-2 8250: 8244: 8243: 8241: 8240: 8226: 8220: 8219: 8217: 8216: 8201: 8195: 8194: 8192: 8191: 8177: 8171: 8170: 8168: 8167: 8152: 8063:projective space 8024: 8022: 8021: 8016: 8014: 8013: 8008: 8007: 7970: 7957: 7948: 7939: 7932: 7922: 7918: 7911: 7906:surface integral 7903: 7900:over the volume 7892: 7891: 7889: 7888: 7883: 7868: 7860: 7846: 7845: 7843: 7842: 7837: 7823: 7822: 7818: 7816: 7815: 7810: 7798: 7794: 7793: 7785: 7775: 7774: 7750: 7746: 7740: 7729: 7718: 7709:(in the case of 7708: 7706: 7705: 7700: 7698: 7697: 7692: 7679: 7661: 7659: 7658: 7653: 7648: 7643: 7635: 7630: 7629: 7614: 7609: 7601: 7590: 7589: 7557:surface integral 7537: 7535: 7534: 7529: 7524: 7510: 7496: 7495: 7491: 7482: 7463: 7459: 7444: 7440: 7418: 7416: 7415: 7410: 7408: 7400: 7399: 7394: 7340: 7338: 7337: 7332: 7281: 7262: 7260: 7259: 7254: 7208:within a region 7118: 7116: 7115: 7110: 7105: 7096: 7091: 7087: 7086: 7084: 7076: 7075: 7066: 7061: 7059: 7051: 7050: 7041: 7016: 7005: 7004: 6989: 6980: 6979: 6894:surface integral 6844: 6842: 6841: 6836: 6815: 6811: 6790: 6782: 6776: 6771: 6759: 6744: 6736: 6730: 6712:, is defined as 6674: 6672: 6671: 6666: 6621:is an arbitrary 6609: 6607: 6606: 6601: 6589: 6575: 6571: 6565: 6548: 6536: 6531: 6508: 6480:piecewise smooth 6440: 6438: 6437: 6432: 6430: 6429: 6407: 6405: 6404: 6399: 6394: 6393: 6384: 6383: 6374: 6373: 6355: 6354: 6345: 6321: 6319: 6318: 6313: 6308: 6303: 6299: 6298: 6296: 6288: 6287: 6286: 6273: 6268: 6266: 6258: 6257: 6256: 6243: 6233: 6228: 6224: 6223: 6221: 6213: 6212: 6211: 6198: 6193: 6191: 6183: 6182: 6181: 6168: 6158: 6153: 6149: 6148: 6146: 6138: 6137: 6136: 6123: 6118: 6116: 6108: 6107: 6106: 6093: 6045: 6043: 6042: 6037: 6035: 6034: 6027: 6026: 6015: 6014: 6003: 6002: 5990: 5986: 5984: 5973: 5969: 5967: 5956: 5952: 5950: 5939: 5934: 5930: 5923: 5916: 5867: 5865: 5864: 5859: 5854: 5853: 5844: 5843: 5831: 5806: 5804: 5803: 5798: 5793: 5791: 5783: 5775: 5770: 5768: 5760: 5752: 5747: 5745: 5737: 5729: 5724: 5710: 5687: 5685: 5684: 5679: 5677: 5676: 5671: 5662: 5661: 5656: 5647: 5605: 5603: 5602: 5597: 5589: 5588: 5576: 5575: 5541: 5539: 5538: 5533: 5531: 5526: 5524: 5516: 5508: 5503: 5498: 5496: 5488: 5480: 5475: 5470: 5468: 5460: 5452: 5431: 5429: 5428: 5423: 5421: 5413: 5412: 5407: 5336: 5334: 5333: 5328: 5326: 5325: 5320: 5306: 5304: 5303: 5298: 5259: 5257: 5256: 5251: 5249: 5248: 5243: 5226: 5224: 5223: 5218: 5216: 5215: 5210: 5193: 5191: 5190: 5185: 5183: 5182: 5177: 5164: 5162: 5161: 5156: 5141: 5139: 5138: 5133: 5131: 5130: 5125: 5112: 5110: 5109: 5104: 5092: 5090: 5089: 5084: 5082: 5081: 5076: 5061: 5059: 5058: 5053: 5048: 5047: 5012: 5011: 4999: 4998: 4963: 4962: 4950: 4949: 4914: 4913: 4893: 4891: 4890: 4885: 4883: 4882: 4863: 4861: 4860: 4855: 4853: 4852: 4834: 4833: 4821: 4820: 4804: 4802: 4801: 4796: 4791: 4790: 4778: 4777: 4765: 4764: 4749: 4748: 4745: 4743: 4742: 4725: 4723: 4722: 4717: 4706: 4705: 4693: 4692: 4680: 4679: 4667: 4666: 4650: 4648: 4647: 4642: 4618: 4616: 4615: 4610: 4608: 4600: 4599: 4594: 4585: 4584: 4568: 4566: 4565: 4560: 4558: 4550: 4542: 4534: 4533: 4528: 4515: 4513: 4512: 4507: 4505: 4489: 4487: 4486: 4481: 4479: 4478: 4473: 4457: 4455: 4454: 4449: 4433: 4431: 4430: 4425: 4423: 4422: 4417: 4404: 4402: 4401: 4396: 4380: 4378: 4377: 4372: 4360: 4358: 4357: 4352: 4347: 4346: 4334: 4333: 4321: 4320: 4305: 4304: 4291: 4289: 4288: 4283: 4281: 4280: 4275: 4262: 4260: 4259: 4254: 4219:seven dimensions 4216: 4203: 4201: 4200: 4195: 4184: 4176: 4165: 4154: 4146: 4135: 4124: 4116: 4105: 4092: 4090: 4089: 4084: 4082: 4070: 4068: 4067: 4062: 4060: 4052: 4036: 4034: 4033: 4028: 4017: 4016: 3996: 3994: 3993: 3988: 3977: 3976: 3971: 3937: 3935: 3934: 3929: 3924: 3920: 3902: 3898: 3886: 3882: 3870: 3866: 3865: 3857: 3841:by the identity 3840: 3838: 3837: 3832: 3830: 3818: 3816: 3815: 3810: 3808: 3796: 3794: 3793: 3788: 3773: 3771: 3770: 3765: 3763: 3755: 3744: 3736: 3720: 3718: 3717: 3712: 3710: 3709: 3687: 3685: 3684: 3679: 3677: 3676: 3667: 3666: 3657: 3656: 3638: 3637: 3628: 3620: 3605: 3603: 3601: 3600: 3595: 3590: 3589: 3580: 3579: 3567: 3566: 3557: 3556: 3544: 3543: 3534: 3533: 3521: 3520: 3511: 3510: 3498: 3497: 3488: 3487: 3475: 3474: 3465: 3464: 3449: 3441: 3425: 3423: 3422: 3417: 3415: 3414: 3409: 3400: 3399: 3394: 3385: 3384: 3379: 3316:binary operation 3291: 3285: 3275: 3266: 3264: 3263: 3258: 3241: 3229: 3218: 3210: 3195: 3189: 3179:Euclidean length 3173: 3171: 3170: 3165: 3160: 3157: 3152: 3139: 3134: 3121: 3116: 3107: 3102: 3100: 3092: 3087: 3079: 3058: 3056: 3055: 3050: 3044: 3039: 3026: 3021: 3008: 3003: 2991: 2990: 2981: 2970: 2962: 2947: 2940: 2932: 2923: 2921: 2920: 2915: 2910: 2909: 2900: 2899: 2889: 2884: 2866: 2865: 2856: 2855: 2843: 2842: 2833: 2832: 2820: 2819: 2810: 2809: 2797: 2789: 2774: 2767: 2753: 2751: 2750: 2745: 2743: 2742: 2737: 2678: 2674: 2668: 2617: 2611: 2589: 2583: 2545: 2543: 2542: 2537: 2457: 2456: 2441: 2440: 2425: 2424: 2392:Quadric surfaces 2338: 2327: 2316: 2305: 2294: 2283: 2272: 2261: 2250: 2146: 2113: 2094: 2071: 2061: 2059: 2058: 2053: 2048: 2047: 2019: 2017: 2016: 2011: 2006: 2005: 1993: 1985: 1955: 1951: 1907: 1905: 1904: 1899: 1897: 1896: 1891: 1819:Lines and planes 1808: 1794: 1780: 1744: 1738: 1717:In mathematics, 1707: 1700: 1693: 1421: 940: 873:Zero-dimensional 578: 564: 508: 506: 505: 500: 476: 474: 473: 468: 450: 448: 447: 442: 369:Pierre de Fermat 272: 261: 257: 255: 254: 249: 244: 243: 238: 225: 221: 208: 99: 92: 88: 85: 79: 74:this article by 65:inline citations 52: 51: 44: 21: 9022: 9021: 9017: 9016: 9015: 9013: 9012: 9011: 8972: 8971: 8970: 8965: 8954: 8933: 8869: 8807: 8761: 8752: 8718:Euclidean space 8701: 8696: 8639: 8638: 8621: 8612: 8591: 8586: 8573: 8568: 8552: 8529: 8516: 8513: 8508: 8507: 8485: 8481: 8474: 8464:Knots and Links 8461: 8460: 8456: 8449: 8439:Vector Analysis 8436: 8435: 8431: 8422: 8420: 8411: 8410: 8406: 8401: 8397: 8389: 8385: 8381:, ch. I.1 8376: 8372: 8354:10.2307/2323537 8348:(10): 697–701. 8339: 8338: 8334: 8326: 8322: 8314: 8310: 8302: 8298: 8290: 8283: 8276: 8252: 8251: 8247: 8238: 8236: 8228: 8227: 8223: 8214: 8212: 8203: 8202: 8198: 8189: 8187: 8179: 8178: 8174: 8165: 8163: 8154: 8153: 8146: 8141: 8087: 8047:Galois geometry 8035:finite geometry 8031: 8001: 7996: 7995: 7973:Knowledge (XXG) 7966: 7964: 7950: 7941: 7934: 7928: 7920: 7913: 7909: 7901: 7898:volume integral 7848: 7847: 7826: 7825: 7824: 7820: 7780: 7776: 7766: 7761: 7760: 7759: 7748: 7742: 7731: 7727: 7725:smooth boundary 7710: 7687: 7682: 7681: 7680:is a subset of 7677: 7674: 7668: 7618: 7581: 7576: 7575: 7553:Stokes' theorem 7550: 7548:Stokes' theorem 7544: 7542:Stokes' theorem 7467: 7451: 7432: 7424: 7423: 7389: 7372: 7371: 7353: 7347: 7268: 7267: 7221: 7220: 7206:triple integral 7180:volume integral 7077: 7067: 7052: 7042: 7039: 7035: 6996: 6971: 6966: 6965: 6907:double integral 6862:parametrization 6860:is a bijective 6848:where · is the 6806: 6717: 6716: 6651: 6650: 6566: 6495: 6494: 6451: 6415: 6410: 6409: 6385: 6375: 6359: 6346: 6327: 6326: 6289: 6278: 6274: 6259: 6248: 6244: 6241: 6237: 6214: 6203: 6199: 6184: 6173: 6169: 6166: 6162: 6139: 6128: 6124: 6109: 6098: 6094: 6091: 6087: 6082: 6081: 6029: 6028: 6018: 6016: 6006: 6004: 5994: 5991: 5988: 5987: 5977: 5970: 5960: 5953: 5943: 5935: 5932: 5931: 5924: 5917: 5905: 5899: 5898: 5845: 5835: 5816: 5815: 5784: 5776: 5761: 5753: 5738: 5730: 5697: 5696: 5666: 5651: 5638: 5637: 5580: 5567: 5553: 5552: 5517: 5509: 5489: 5481: 5461: 5453: 5437: 5436: 5402: 5391: 5390: 5387: 5382: 5380:vector calculus 5376: 5356: 5350: 5315: 5310: 5309: 5280: 5279: 5276: 5274:Euclidean space 5266: 5238: 5233: 5232: 5205: 5200: 5199: 5172: 5167: 5166: 5147: 5146: 5120: 5115: 5114: 5095: 5094: 5071: 5066: 5065: 5042: 5041: 5035: 5034: 5028: 5027: 5017: 5003: 4993: 4992: 4986: 4985: 4979: 4978: 4968: 4954: 4944: 4943: 4937: 4936: 4930: 4929: 4919: 4905: 4900: 4899: 4896:Kronecker delta 4871: 4866: 4865: 4841: 4825: 4812: 4807: 4806: 4782: 4769: 4756: 4736: 4731: 4730: 4697: 4684: 4671: 4658: 4653: 4652: 4651:. For example, 4621: 4620: 4589: 4576: 4571: 4570: 4523: 4518: 4517: 4496: 4495: 4468: 4463: 4462: 4440: 4439: 4412: 4407: 4406: 4387: 4386: 4363: 4362: 4338: 4325: 4312: 4294: 4293: 4270: 4265: 4264: 4245: 4244: 4241: 4235: 4211: 4096: 4095: 4073: 4072: 4043: 4042: 4039:Jacobi identity 4003: 4002: 3966: 3958: 3957: 3944:, which is not 3910: 3906: 3890: 3874: 3852: 3848: 3843: 3842: 3821: 3820: 3799: 3798: 3779: 3778: 3727: 3726: 3695: 3690: 3689: 3668: 3658: 3642: 3629: 3608: 3607: 3581: 3571: 3558: 3548: 3535: 3525: 3512: 3502: 3489: 3479: 3466: 3456: 3432: 3431: 3430: 3404: 3389: 3374: 3363: 3362: 3334:of the vectors 3304: 3298: 3287: 3281: 3271: 3201: 3200: 3191: 3185: 3181:of the vector. 3067: 3066: 2982: 2953: 2952: 2948:with itself is 2942: 2934: 2928: 2901: 2891: 2857: 2847: 2834: 2824: 2811: 2801: 2780: 2779: 2775:is defined as: 2769: 2762: 2758:of the vector. 2732: 2727: 2726: 2723: 2717: 2696: 2676: 2670: 2666: 2620:quadric surface 2613: 2591: 2585: 2547: 2448: 2432: 2416: 2408: 2407: 2400: 2398:Quadric surface 2394: 2357: 2351: 2339: 2328: 2317: 2306: 2295: 2284: 2273: 2262: 2251: 2241: 2217: 2210: 2203: 2189: 2181: 2173: 2153:Platonic solids 2134:Platonic solids 2130: 2124: 2096: 2073: 2067: 2039: 2022: 2021: 1997: 1973: 1972: 1953: 1947: 1924: 1918: 1886: 1881: 1880: 1871:linear equation 1821: 1814: 1809: 1800: 1795: 1786: 1781: 1766:Euclidean space 1740: 1730: 1723:coordinate axes 1711: 1682: 1681: 1418: 1417: 1408: 1407: 1198: 1197: 1181: 1180: 1166: 1165: 1153: 1152: 1089: 1088: 1077: 1076: 937: 936: 934:Two-dimensional 925: 924: 898: 897: 895:One-dimensional 886: 885: 876: 875: 864: 863: 797: 796: 795: 778: 777: 626: 625: 614: 591: 562: 556: 551: 527:Vector Analysis 479: 478: 453: 452: 400: 399: 344:Platonic solids 335: 267: 259: 233: 228: 227: 223: 217: 204: 199:Technically, a 166:Euclidean space 164:, that is, the 100: 89: 83: 80: 70:Please help to 69: 53: 49: 42: 35: 28: 23: 22: 15: 12: 11: 5: 9020: 9018: 9010: 9009: 9004: 8999: 8994: 8989: 8984: 8974: 8973: 8967: 8966: 8959: 8956: 8955: 8953: 8952: 8947: 8941: 8939: 8935: 8934: 8932: 8931: 8923: 8918: 8913: 8908: 8903: 8898: 8893: 8888: 8883: 8877: 8875: 8871: 8870: 8868: 8867: 8862: 8857: 8855:Cross-polytope 8852: 8847: 8842: 8840:Hyperrectangle 8837: 8832: 8827: 8821: 8819: 8809: 8808: 8806: 8805: 8800: 8795: 8790: 8785: 8780: 8775: 8769: 8767: 8763: 8762: 8755: 8753: 8751: 8750: 8745: 8740: 8735: 8730: 8725: 8720: 8715: 8709: 8707: 8703: 8702: 8697: 8695: 8694: 8687: 8680: 8672: 8666: 8665: 8655: 8636: 8620: 8619:External links 8617: 8616: 8615: 8610: 8594:Linear algebra 8589: 8584: 8571: 8566: 8554:Berger, Marcel 8550: 8532: 8527: 8512: 8509: 8506: 8505: 8479: 8472: 8454: 8447: 8429: 8404: 8402:Arfken, p. 43. 8395: 8383: 8370: 8332: 8320: 8308: 8296: 8281: 8274: 8245: 8221: 8196: 8172: 8143: 8142: 8140: 8137: 8136: 8135: 8130: 8128:Solid geometry 8125: 8120: 8115: 8110: 8105: 8100: 8099: 8098: 8086: 8083: 8061:), there is a 8030: 8027: 8012: 8006: 7963: 7960: 7894: 7893: 7881: 7878: 7875: 7871: 7867: 7863: 7859: 7855: 7834: 7808: 7805: 7802: 7797: 7792: 7788: 7784: 7779: 7773: 7769: 7696: 7691: 7670:Main article: 7667: 7664: 7663: 7662: 7651: 7647: 7642: 7638: 7634: 7628: 7625: 7621: 7617: 7613: 7608: 7604: 7600: 7596: 7593: 7588: 7584: 7546:Main article: 7543: 7540: 7539: 7538: 7527: 7523: 7519: 7516: 7513: 7509: 7505: 7502: 7499: 7494: 7490: 7485: 7481: 7477: 7474: 7470: 7466: 7462: 7458: 7454: 7450: 7447: 7443: 7439: 7435: 7431: 7407: 7403: 7398: 7393: 7388: 7385: 7382: 7379: 7359:, says that a 7349:Main article: 7346: 7343: 7342: 7341: 7330: 7327: 7324: 7320: 7317: 7313: 7310: 7306: 7303: 7300: 7297: 7294: 7291: 7288: 7285: 7280: 7276: 7252: 7249: 7246: 7243: 7240: 7237: 7234: 7231: 7228: 7120: 7119: 7108: 7104: 7099: 7095: 7090: 7083: 7080: 7074: 7070: 7064: 7058: 7055: 7049: 7045: 7038: 7034: 7031: 7028: 7025: 7022: 7019: 7015: 7011: 7008: 7003: 6999: 6995: 6992: 6988: 6983: 6978: 6974: 6846: 6845: 6834: 6831: 6828: 6824: 6821: 6818: 6814: 6810: 6805: 6802: 6799: 6796: 6793: 6789: 6785: 6781: 6775: 6770: 6766: 6762: 6758: 6754: 6750: 6747: 6743: 6739: 6735: 6729: 6725: 6664: 6661: 6658: 6611: 6610: 6599: 6596: 6593: 6588: 6584: 6581: 6578: 6574: 6570: 6564: 6560: 6557: 6554: 6551: 6547: 6543: 6540: 6535: 6530: 6526: 6522: 6519: 6516: 6512: 6507: 6503: 6490:is defined as 6450: 6447: 6428: 6425: 6422: 6418: 6397: 6392: 6388: 6382: 6378: 6372: 6369: 6366: 6362: 6358: 6353: 6349: 6344: 6340: 6337: 6334: 6323: 6322: 6311: 6307: 6302: 6295: 6292: 6285: 6281: 6277: 6271: 6265: 6262: 6255: 6251: 6247: 6240: 6236: 6232: 6227: 6220: 6217: 6210: 6206: 6202: 6196: 6190: 6187: 6180: 6176: 6172: 6165: 6161: 6157: 6152: 6145: 6142: 6135: 6131: 6127: 6121: 6115: 6112: 6105: 6101: 6097: 6090: 6047: 6046: 6033: 6025: 6021: 6017: 6013: 6009: 6005: 6001: 5997: 5993: 5992: 5989: 5983: 5980: 5976: 5971: 5966: 5963: 5959: 5954: 5949: 5946: 5942: 5937: 5936: 5933: 5929: 5925: 5922: 5918: 5915: 5911: 5910: 5908: 5894:composed of : 5857: 5852: 5848: 5842: 5838: 5834: 5830: 5826: 5823: 5808: 5807: 5796: 5790: 5787: 5782: 5779: 5773: 5767: 5764: 5759: 5756: 5750: 5744: 5741: 5736: 5733: 5727: 5723: 5719: 5716: 5713: 5709: 5704: 5675: 5670: 5665: 5660: 5655: 5650: 5646: 5595: 5592: 5587: 5583: 5579: 5574: 5570: 5566: 5563: 5560: 5547:index notation 5543: 5542: 5530: 5523: 5520: 5515: 5512: 5506: 5502: 5495: 5492: 5487: 5484: 5478: 5474: 5467: 5464: 5459: 5456: 5450: 5447: 5444: 5420: 5416: 5411: 5406: 5401: 5398: 5386: 5383: 5378:Main article: 5375: 5372: 5349: 5346: 5324: 5319: 5296: 5293: 5290: 5287: 5265: 5262: 5247: 5242: 5214: 5209: 5181: 5176: 5154: 5129: 5124: 5102: 5080: 5075: 5051: 5046: 5040: 5037: 5036: 5033: 5030: 5029: 5026: 5023: 5022: 5020: 5015: 5010: 5006: 5002: 4997: 4991: 4988: 4987: 4984: 4981: 4980: 4977: 4974: 4973: 4971: 4966: 4961: 4957: 4953: 4948: 4942: 4939: 4938: 4935: 4932: 4931: 4928: 4925: 4924: 4922: 4917: 4912: 4908: 4881: 4878: 4874: 4851: 4848: 4844: 4840: 4837: 4832: 4828: 4824: 4819: 4815: 4794: 4789: 4785: 4781: 4776: 4772: 4768: 4763: 4759: 4755: 4752: 4741: 4728:standard basis 4715: 4712: 4709: 4704: 4700: 4696: 4691: 4687: 4683: 4678: 4674: 4670: 4665: 4661: 4640: 4637: 4634: 4631: 4628: 4607: 4603: 4598: 4593: 4588: 4583: 4579: 4557: 4553: 4549: 4545: 4541: 4537: 4532: 4527: 4504: 4477: 4472: 4447: 4421: 4416: 4394: 4370: 4350: 4345: 4341: 4337: 4332: 4328: 4324: 4319: 4315: 4311: 4308: 4303: 4279: 4274: 4252: 4234: 4231: 4193: 4190: 4187: 4183: 4179: 4175: 4171: 4168: 4164: 4160: 4157: 4153: 4149: 4145: 4141: 4138: 4134: 4130: 4127: 4123: 4119: 4115: 4111: 4108: 4104: 4081: 4059: 4055: 4051: 4026: 4023: 4020: 4015: 4012: 3986: 3983: 3980: 3975: 3970: 3965: 3927: 3923: 3919: 3916: 3913: 3909: 3905: 3901: 3897: 3893: 3889: 3885: 3881: 3877: 3873: 3869: 3864: 3860: 3856: 3851: 3829: 3807: 3786: 3762: 3758: 3754: 3750: 3747: 3743: 3739: 3735: 3708: 3705: 3702: 3698: 3675: 3671: 3665: 3661: 3655: 3652: 3649: 3645: 3641: 3636: 3632: 3627: 3623: 3619: 3615: 3593: 3588: 3584: 3578: 3574: 3570: 3565: 3561: 3555: 3551: 3547: 3542: 3538: 3532: 3528: 3524: 3519: 3515: 3509: 3505: 3501: 3496: 3492: 3486: 3482: 3478: 3473: 3469: 3463: 3459: 3455: 3452: 3448: 3444: 3440: 3413: 3408: 3403: 3398: 3393: 3388: 3383: 3378: 3373: 3370: 3312:vector product 3300:Main article: 3297: 3294: 3268: 3267: 3256: 3253: 3250: 3247: 3244: 3240: 3236: 3232: 3228: 3224: 3221: 3217: 3213: 3209: 3175: 3174: 3163: 3156: 3151: 3147: 3143: 3138: 3133: 3129: 3125: 3120: 3115: 3111: 3105: 3099: 3095: 3091: 3085: 3082: 3078: 3074: 3060: 3059: 3048: 3043: 3038: 3034: 3030: 3025: 3020: 3016: 3012: 3007: 3002: 2998: 2994: 2989: 2985: 2980: 2976: 2973: 2969: 2965: 2961: 2933:is denoted by 2925: 2924: 2913: 2908: 2904: 2898: 2894: 2888: 2883: 2880: 2877: 2873: 2869: 2864: 2860: 2854: 2850: 2846: 2841: 2837: 2831: 2827: 2823: 2818: 2814: 2808: 2804: 2800: 2796: 2792: 2788: 2741: 2736: 2719:Main article: 2716: 2713: 2700:linear algebra 2695: 2692: 2684:ruled surfaces 2662: 2661: 2656: 2651: 2646: 2641: 2636: 2627:non-degenerate 2535: 2532: 2529: 2526: 2523: 2520: 2517: 2514: 2511: 2508: 2505: 2502: 2499: 2496: 2493: 2490: 2487: 2484: 2481: 2478: 2475: 2472: 2469: 2466: 2463: 2460: 2455: 2451: 2447: 2444: 2439: 2435: 2431: 2428: 2423: 2419: 2415: 2404:conic sections 2396:Main article: 2393: 2390: 2353:Main article: 2350: 2347: 2344: 2343: 2332: 2321: 2310: 2299: 2288: 2277: 2266: 2255: 2244: 2236: 2235: 2232: 2229: 2226: 2220: 2219: 2215: 2212: 2208: 2205: 2201: 2198: 2192: 2191: 2187: 2183: 2179: 2175: 2171: 2167: 2161: 2160: 2155: 2150: 2126:Main article: 2123: 2120: 2051: 2046: 2042: 2038: 2035: 2032: 2029: 2009: 2004: 2000: 1996: 1991: 1988: 1983: 1980: 1920:Main article: 1917: 1914: 1895: 1890: 1820: 1817: 1816: 1815: 1810: 1803: 1801: 1796: 1789: 1787: 1782: 1775: 1713: 1712: 1710: 1709: 1702: 1695: 1687: 1684: 1683: 1678: 1677: 1676: 1675: 1670: 1662: 1661: 1657: 1656: 1655: 1654: 1649: 1644: 1639: 1634: 1629: 1624: 1619: 1614: 1609: 1604: 1596: 1595: 1591: 1590: 1589: 1588: 1583: 1578: 1573: 1568: 1563: 1558: 1553: 1545: 1544: 1540: 1539: 1538: 1537: 1532: 1527: 1522: 1517: 1512: 1507: 1502: 1497: 1492: 1487: 1482: 1474: 1473: 1469: 1468: 1467: 1466: 1461: 1456: 1451: 1446: 1441: 1436: 1428: 1427: 1419: 1415: 1414: 1413: 1410: 1409: 1406: 1405: 1400: 1395: 1390: 1385: 1380: 1375: 1370: 1365: 1360: 1355: 1350: 1345: 1340: 1335: 1330: 1325: 1320: 1315: 1310: 1305: 1300: 1295: 1290: 1285: 1280: 1275: 1270: 1265: 1260: 1255: 1250: 1245: 1240: 1235: 1230: 1225: 1220: 1215: 1210: 1205: 1199: 1195: 1194: 1193: 1190: 1189: 1183: 1182: 1179: 1178: 1173: 1167: 1160: 1159: 1158: 1155: 1154: 1151: 1150: 1145: 1140: 1138:Platonic Solid 1135: 1130: 1125: 1120: 1115: 1110: 1109: 1108: 1097: 1096: 1090: 1084: 1083: 1082: 1079: 1078: 1073: 1072: 1071: 1070: 1065: 1060: 1052: 1051: 1045: 1044: 1043: 1042: 1037: 1029: 1028: 1022: 1021: 1020: 1019: 1014: 1009: 1004: 996: 995: 989: 988: 987: 986: 981: 976: 968: 967: 961: 960: 959: 958: 953: 948: 938: 932: 931: 930: 927: 926: 923: 922: 917: 916: 915: 910: 899: 893: 892: 891: 888: 887: 884: 883: 877: 871: 870: 869: 866: 865: 862: 861: 856: 851: 845: 844: 839: 834: 824: 819: 814: 808: 807: 798: 794: 793: 790: 786: 785: 784: 783: 780: 779: 776: 775: 774: 773: 763: 758: 753: 748: 743: 742: 741: 731: 726: 721: 720: 719: 714: 709: 699: 698: 697: 692: 682: 677: 672: 667: 662: 657: 656: 655: 650: 649: 648: 633: 627: 621: 620: 619: 616: 615: 613: 612: 602: 596: 593: 592: 579: 571: 570: 558:Main article: 555: 552: 550: 547: 543:Giuseppe Peano 498: 495: 492: 489: 486: 466: 463: 460: 440: 437: 434: 431: 428: 425: 422: 419: 416: 413: 410: 407: 359:René Descartes 334: 331: 247: 242: 237: 174:physical space 102: 101: 56: 54: 47: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 9019: 9008: 9005: 9003: 9000: 8998: 8995: 8993: 8990: 8988: 8985: 8983: 8980: 8979: 8977: 8964: 8963: 8957: 8951: 8948: 8946: 8943: 8942: 8940: 8936: 8930: 8928: 8924: 8922: 8919: 8917: 8914: 8912: 8909: 8907: 8904: 8902: 8899: 8897: 8894: 8892: 8889: 8887: 8884: 8882: 8879: 8878: 8876: 8872: 8866: 8863: 8861: 8858: 8856: 8853: 8851: 8848: 8846: 8845:Demihypercube 8843: 8841: 8838: 8836: 8833: 8831: 8828: 8826: 8823: 8822: 8820: 8818: 8814: 8810: 8804: 8801: 8799: 8796: 8794: 8791: 8789: 8786: 8784: 8781: 8779: 8776: 8774: 8771: 8770: 8768: 8764: 8759: 8749: 8746: 8744: 8741: 8739: 8736: 8734: 8731: 8729: 8726: 8724: 8721: 8719: 8716: 8714: 8711: 8710: 8708: 8704: 8700: 8693: 8688: 8686: 8681: 8679: 8674: 8673: 8670: 8663: 8659: 8656: 8651: 8650: 8645: 8642: 8637: 8635:at Wiktionary 8634: 8633: 8627: 8623: 8622: 8618: 8613: 8607: 8603: 8599: 8595: 8590: 8587: 8581: 8577: 8572: 8569: 8567:3-540-11658-3 8563: 8559: 8555: 8551: 8548: 8544: 8540: 8536: 8533: 8530: 8524: 8520: 8515: 8514: 8510: 8503: 8502:0-521-48277-1 8499: 8496: 8492: 8488: 8483: 8480: 8475: 8473:0-914098-16-0 8469: 8465: 8458: 8455: 8450: 8444: 8440: 8433: 8430: 8419:(in Japanese) 8418: 8414: 8408: 8405: 8399: 8396: 8392: 8387: 8384: 8380: 8374: 8371: 8367: 8363: 8359: 8355: 8351: 8347: 8343: 8336: 8333: 8330:, p. 131 8329: 8324: 8321: 8318:, p. 133 8317: 8312: 8309: 8305: 8300: 8297: 8293: 8288: 8286: 8282: 8277: 8271: 8267: 8263: 8259: 8255: 8249: 8246: 8235: 8231: 8225: 8222: 8211:(in Japanese) 8210: 8206: 8200: 8197: 8186: 8182: 8176: 8173: 8162:(in Japanese) 8161: 8157: 8151: 8149: 8145: 8138: 8134: 8131: 8129: 8126: 8124: 8121: 8119: 8116: 8114: 8111: 8109: 8106: 8104: 8101: 8097: 8094: 8093: 8092: 8089: 8088: 8084: 8082: 8080: 8076: 8072: 8068: 8064: 8060: 8056: 8055:finite fields 8052: 8049:, a study of 8048: 8044: 8040: 8036: 8028: 8026: 8010: 7993: 7989: 7984: 7982: 7974: 7969: 7961: 7959: 7956: 7953: 7947: 7944: 7938: 7931: 7926: 7917: 7907: 7899: 7879: 7876: 7873: 7861: 7832: 7806: 7803: 7800: 7795: 7786: 7777: 7771: 7767: 7758: 7757: 7756: 7754: 7745: 7739: 7735: 7726: 7722: 7717: 7713: 7694: 7673: 7665: 7649: 7636: 7619: 7615: 7602: 7594: 7582: 7574: 7573: 7572: 7570: 7569:line integral 7566: 7562: 7558: 7554: 7549: 7525: 7517: 7514: 7500: 7483: 7472: 7468: 7464: 7460: 7452: 7448: 7445: 7441: 7433: 7429: 7422: 7421: 7420: 7396: 7386: 7383: 7380: 7377: 7368: 7366: 7362: 7361:line integral 7358: 7352: 7344: 7328: 7325: 7322: 7318: 7315: 7311: 7308: 7301: 7298: 7295: 7292: 7289: 7283: 7278: 7274: 7266: 7265: 7264: 7250: 7244: 7241: 7238: 7235: 7232: 7226: 7219: 7215: 7211: 7207: 7203: 7202: 7197: 7193: 7192: 7186: 7182: 7181: 7175: 7173: 7169: 7165: 7161: 7157: 7153: 7149: 7145: 7141: 7137: 7133: 7129: 7128:cross product 7125: 7106: 7097: 7081: 7062: 7056: 7026: 7023: 7020: 7006: 7001: 6997: 6993: 6990: 6981: 6976: 6972: 6964: 6963: 6962: 6960: 6956: 6952: 6948: 6944: 6940: 6936: 6932: 6928: 6924: 6920: 6916: 6912: 6908: 6904: 6900: 6896: 6895: 6889: 6887: 6883: 6879: 6875: 6871: 6867: 6864:of the curve 6863: 6859: 6855: 6851: 6832: 6829: 6826: 6819: 6812: 6803: 6794: 6773: 6768: 6764: 6760: 6752: 6748: 6727: 6723: 6715: 6714: 6713: 6711: 6707: 6703: 6700: 6696: 6692: 6688: 6684: 6681: 6676: 6662: 6659: 6656: 6648: 6644: 6640: 6636: 6632: 6628: 6624: 6620: 6616: 6597: 6594: 6591: 6579: 6572: 6552: 6538: 6533: 6528: 6524: 6520: 6517: 6514: 6510: 6505: 6501: 6493: 6492: 6491: 6489: 6485: 6481: 6477: 6476: 6475:line integral 6471: 6467: 6463: 6459: 6456: 6448: 6446: 6444: 6426: 6423: 6420: 6416: 6395: 6390: 6386: 6380: 6370: 6367: 6364: 6360: 6356: 6351: 6338: 6309: 6300: 6293: 6283: 6279: 6269: 6263: 6253: 6249: 6238: 6234: 6225: 6218: 6208: 6204: 6194: 6188: 6178: 6174: 6163: 6159: 6150: 6143: 6133: 6129: 6119: 6113: 6103: 6099: 6088: 6080: 6079: 6078: 6076: 6072: 6068: 6064: 6060: 6056: 6052: 6031: 6023: 6019: 6011: 6007: 5999: 5995: 5981: 5964: 5947: 5906: 5897: 5896: 5895: 5893: 5889: 5885: 5881: 5877: 5873: 5868: 5855: 5850: 5846: 5840: 5832: 5824: 5813: 5794: 5788: 5780: 5771: 5765: 5757: 5748: 5742: 5734: 5725: 5717: 5711: 5702: 5695: 5694: 5693: 5691: 5673: 5658: 5648: 5635: 5632: 5628: 5625: 5621: 5618: 5614: 5611: 5606: 5593: 5590: 5585: 5577: 5572: 5564: 5550: 5548: 5521: 5513: 5504: 5493: 5485: 5476: 5465: 5457: 5448: 5445: 5435: 5434: 5433: 5409: 5399: 5396: 5384: 5381: 5373: 5371: 5369: 5365: 5364:inner product 5361: 5355: 5347: 5345: 5342: 5340: 5322: 5291: 5285: 5275: 5271: 5263: 5261: 5245: 5229: 5212: 5195: 5179: 5152: 5143: 5127: 5100: 5078: 5062: 5049: 5044: 5038: 5031: 5024: 5018: 5013: 5008: 5004: 5000: 4995: 4989: 4982: 4975: 4969: 4964: 4959: 4955: 4951: 4946: 4940: 4933: 4926: 4920: 4915: 4910: 4906: 4897: 4879: 4876: 4872: 4849: 4846: 4842: 4838: 4830: 4826: 4817: 4813: 4787: 4783: 4779: 4774: 4770: 4766: 4761: 4757: 4750: 4729: 4713: 4710: 4702: 4698: 4694: 4689: 4685: 4681: 4676: 4672: 4663: 4659: 4638: 4635: 4632: 4629: 4626: 4596: 4586: 4581: 4577: 4551: 4543: 4535: 4530: 4494:of copies of 4493: 4475: 4459: 4445: 4437: 4419: 4392: 4384: 4368: 4343: 4339: 4335: 4330: 4326: 4322: 4317: 4313: 4306: 4277: 4250: 4240: 4232: 4226: 4222: 4220: 4214: 4209: 4204: 4191: 4188: 4177: 4166: 4158: 4147: 4136: 4128: 4117: 4106: 4093: 4053: 4040: 4021: 4000: 3981: 3978: 3973: 3955: 3951: 3947: 3943: 3938: 3925: 3921: 3917: 3914: 3911: 3907: 3903: 3887: 3871: 3858: 3784: 3775: 3756: 3748: 3745: 3737: 3724: 3706: 3703: 3700: 3696: 3673: 3669: 3663: 3659: 3653: 3650: 3647: 3643: 3639: 3634: 3621: 3586: 3582: 3576: 3572: 3568: 3563: 3559: 3553: 3549: 3545: 3540: 3536: 3530: 3526: 3522: 3517: 3513: 3507: 3503: 3499: 3494: 3490: 3484: 3480: 3476: 3471: 3467: 3461: 3457: 3450: 3442: 3427: 3411: 3396: 3386: 3381: 3371: 3368: 3359: 3357: 3353: 3349: 3345: 3344:perpendicular 3341: 3337: 3333: 3329: 3325: 3321: 3317: 3313: 3309: 3308:cross product 3303: 3302:Cross product 3296:Cross product 3295: 3293: 3290: 3284: 3279: 3274: 3254: 3251: 3248: 3245: 3219: 3211: 3199: 3198: 3197: 3194: 3188: 3182: 3180: 3161: 3154: 3149: 3145: 3141: 3136: 3131: 3127: 3123: 3118: 3113: 3109: 3103: 3093: 3083: 3065: 3064: 3063: 3046: 3041: 3036: 3032: 3028: 3023: 3018: 3014: 3010: 3005: 3000: 2996: 2992: 2987: 2971: 2963: 2951: 2950: 2949: 2945: 2938: 2931: 2911: 2906: 2902: 2896: 2892: 2886: 2881: 2878: 2875: 2871: 2867: 2862: 2858: 2852: 2848: 2844: 2839: 2835: 2829: 2825: 2821: 2816: 2812: 2806: 2802: 2798: 2790: 2778: 2777: 2776: 2772: 2765: 2759: 2757: 2739: 2722: 2714: 2712: 2710: 2705: 2701: 2693: 2691: 2689: 2685: 2680: 2673: 2660: 2657: 2655: 2652: 2650: 2649:Elliptic cone 2647: 2645: 2642: 2640: 2637: 2635: 2632: 2631: 2630: 2628: 2623: 2621: 2616: 2610: 2606: 2602: 2598: 2594: 2588: 2582: 2578: 2574: 2570: 2566: 2562: 2558: 2554: 2550: 2533: 2530: 2527: 2524: 2521: 2518: 2515: 2512: 2509: 2506: 2503: 2500: 2497: 2494: 2491: 2488: 2485: 2482: 2479: 2476: 2473: 2470: 2467: 2464: 2461: 2458: 2453: 2449: 2445: 2442: 2437: 2433: 2429: 2426: 2421: 2417: 2413: 2405: 2399: 2391: 2389: 2387: 2383: 2378: 2376: 2375: 2370: 2366: 2362: 2356: 2348: 2342: 2337: 2333: 2331: 2326: 2322: 2320: 2315: 2311: 2309: 2304: 2300: 2298: 2293: 2289: 2287: 2282: 2278: 2276: 2271: 2267: 2265: 2260: 2256: 2254: 2249: 2245: 2243: 2238: 2227: 2225: 2222: 2199: 2197: 2196:Coxeter group 2194: 2193: 2190: 2182: 2174: 2168: 2166: 2163: 2162: 2159: 2154: 2148: 2141: 2139: 2135: 2129: 2121: 2119: 2115: 2111: 2107: 2103: 2099: 2092: 2088: 2084: 2080: 2076: 2070: 2065: 2049: 2044: 2040: 2036: 2033: 2030: 2027: 2007: 2002: 1998: 1994: 1989: 1986: 1981: 1978: 1970: 1967: 1965: 1961: 1960: 1950: 1945: 1941: 1933: 1928: 1923: 1915: 1913: 1911: 1910:parallelogram 1893: 1878: 1874: 1872: 1867: 1862: 1859: 1855: 1853: 1849: 1845: 1840: 1838: 1834: 1830: 1826: 1818: 1813: 1807: 1802: 1799: 1793: 1788: 1785: 1779: 1774: 1772: 1769: 1767: 1763: 1759: 1754: 1752: 1748: 1743: 1737: 1733: 1728: 1724: 1720: 1708: 1703: 1701: 1696: 1694: 1689: 1688: 1686: 1685: 1674: 1671: 1669: 1666: 1665: 1664: 1663: 1658: 1653: 1650: 1648: 1645: 1643: 1640: 1638: 1635: 1633: 1630: 1628: 1625: 1623: 1620: 1618: 1615: 1613: 1610: 1608: 1605: 1603: 1600: 1599: 1598: 1597: 1592: 1587: 1584: 1582: 1579: 1577: 1574: 1572: 1569: 1567: 1564: 1562: 1559: 1557: 1554: 1552: 1549: 1548: 1547: 1546: 1541: 1536: 1533: 1531: 1528: 1526: 1523: 1521: 1518: 1516: 1513: 1511: 1508: 1506: 1503: 1501: 1498: 1496: 1493: 1491: 1488: 1486: 1483: 1481: 1478: 1477: 1476: 1475: 1470: 1465: 1462: 1460: 1457: 1455: 1452: 1450: 1447: 1445: 1442: 1440: 1437: 1435: 1432: 1431: 1430: 1429: 1426: 1422: 1412: 1411: 1404: 1401: 1399: 1396: 1394: 1391: 1389: 1386: 1384: 1381: 1379: 1376: 1374: 1371: 1369: 1366: 1364: 1361: 1359: 1356: 1354: 1351: 1349: 1346: 1344: 1341: 1339: 1336: 1334: 1331: 1329: 1326: 1324: 1321: 1319: 1316: 1314: 1311: 1309: 1306: 1304: 1301: 1299: 1296: 1294: 1291: 1289: 1286: 1284: 1281: 1279: 1276: 1274: 1271: 1269: 1266: 1264: 1261: 1259: 1256: 1254: 1251: 1249: 1246: 1244: 1241: 1239: 1236: 1234: 1231: 1229: 1226: 1224: 1221: 1219: 1216: 1214: 1211: 1209: 1206: 1204: 1201: 1200: 1192: 1191: 1188: 1184: 1177: 1174: 1172: 1169: 1168: 1163: 1157: 1156: 1149: 1146: 1144: 1141: 1139: 1136: 1134: 1131: 1129: 1126: 1124: 1121: 1119: 1116: 1114: 1111: 1107: 1104: 1103: 1102: 1099: 1098: 1095: 1092: 1091: 1087: 1081: 1080: 1069: 1066: 1064: 1063:Circumference 1061: 1059: 1056: 1055: 1054: 1053: 1050: 1046: 1041: 1038: 1036: 1033: 1032: 1031: 1030: 1027: 1026:Quadrilateral 1023: 1018: 1015: 1013: 1010: 1008: 1005: 1003: 1000: 999: 998: 997: 994: 993:Parallelogram 990: 985: 982: 980: 977: 975: 972: 971: 970: 969: 966: 962: 957: 954: 952: 949: 947: 944: 943: 942: 941: 935: 929: 928: 921: 918: 914: 911: 909: 906: 905: 904: 901: 900: 896: 890: 889: 882: 879: 878: 874: 868: 867: 860: 857: 855: 852: 850: 847: 846: 843: 840: 838: 835: 832: 831:Perpendicular 828: 827:Orthogonality 825: 823: 820: 818: 815: 813: 810: 809: 806: 803: 802: 801: 791: 788: 787: 782: 781: 772: 769: 768: 767: 764: 762: 759: 757: 754: 752: 751:Computational 749: 747: 744: 740: 737: 736: 735: 732: 730: 727: 725: 722: 718: 715: 713: 710: 708: 705: 704: 703: 700: 696: 693: 691: 688: 687: 686: 683: 681: 678: 676: 673: 671: 668: 666: 663: 661: 658: 654: 651: 647: 644: 643: 642: 639: 638: 637: 636:Non-Euclidean 634: 632: 629: 628: 624: 618: 617: 610: 606: 603: 601: 598: 597: 595: 594: 590: 586: 582: 577: 573: 572: 569: 565: 561: 553: 548: 546: 544: 540: 535: 533: 529: 528: 523: 518: 516: 515:cross product 512: 496: 493: 490: 487: 484: 464: 461: 458: 438: 435: 432: 429: 426: 423: 420: 417: 414: 411: 408: 405: 397: 393: 389: 385: 381: 376: 374: 370: 366: 365: 360: 357:developed by 356: 352: 347: 346:in a sphere. 345: 340: 332: 330: 328: 327: 322: 320: 315: 313: 308: 307:perpendicular 304: 300: 296: 292: 288: 285:exists. When 284: 280: 276: 270: 265: 245: 240: 220: 215: 211: 207: 202: 197: 195: 194: 189: 185: 181: 180: 175: 171: 167: 163: 159: 155: 151: 150: 145: 141: 137: 133: 129: 125: 117: 113: 108: 98: 95: 87: 77: 73: 67: 66: 60: 55: 46: 45: 40: 33: 19: 8960: 8926: 8895: 8865:Hyperpyramid 8830:Hypersurface 8723:Affine space 8713:Vector space 8647: 8631: 8593: 8575: 8557: 8538: 8518: 8490: 8482: 8463: 8457: 8438: 8432: 8421:. Retrieved 8416: 8407: 8398: 8393:, Chapter 9. 8386: 8373: 8365: 8345: 8341: 8335: 8323: 8311: 8299: 8265: 8248: 8237:. Retrieved 8233: 8224: 8213:. Retrieved 8208: 8199: 8188:. Retrieved 8184: 8175: 8164:. Retrieved 8159: 8074: 8066: 8058: 8041:, which has 8032: 7985: 7978: 7954: 7951: 7945: 7942: 7936: 7929: 7915: 7895: 7743: 7737: 7733: 7715: 7711: 7675: 7565:vector field 7555:relates the 7551: 7369: 7354: 7213: 7209: 7199: 7188: 7178: 7176: 7171: 7167: 7163: 7159: 7155: 7151: 7143: 7139: 7135: 7121: 6954: 6950: 6946: 6942: 6938: 6934: 6922: 6914: 6911:parameterize 6892: 6890: 6885: 6881: 6877: 6873: 6869: 6865: 6857: 6853: 6847: 6709: 6705: 6701: 6694: 6690: 6686: 6682: 6680:vector field 6677: 6646: 6642: 6638: 6634: 6630: 6626: 6618: 6614: 6612: 6487: 6483: 6473: 6469: 6465: 6461: 6457: 6455:scalar field 6452: 6324: 6074: 6070: 6066: 6063:unit vectors 6058: 6054: 6050: 6048: 5891: 5887: 5870:Expanded in 5869: 5809: 5633: 5630: 5626: 5623: 5619: 5616: 5612: 5610:vector field 5607: 5551: 5544: 5432:is given by 5388: 5357: 5343: 5338: 5277: 5270:affine space 5230: 5196: 5165:, the space 5144: 5063: 4460: 4242: 4239:vector space 4212: 4207: 4205: 4094: 3939: 3776: 3428: 3360: 3339: 3335: 3331: 3327: 3311: 3305: 3288: 3282: 3272: 3269: 3196:is given by 3192: 3186: 3183: 3176: 3062:which gives 3061: 2943: 2936: 2929: 2926: 2770: 2763: 2760: 2755: 2724: 2697: 2681: 2671: 2663: 2624: 2619: 2614: 2608: 2604: 2600: 2596: 2592: 2586: 2580: 2576: 2572: 2568: 2564: 2560: 2556: 2552: 2548: 2401: 2379: 2372: 2358: 2131: 2116: 2109: 2105: 2101: 2097: 2090: 2086: 2082: 2078: 2074: 2068: 2063: 1971: 1968: 1963: 1958: 1948: 1943: 1937: 1875: 1863: 1860: 1856: 1841: 1822: 1770: 1755: 1747:real numbers 1741: 1735: 1731: 1716: 1535:Parameshvara 1348:Parameshvara 1118:Dodecahedron 1085: 702:Differential 536: 525: 519: 377: 372: 364:La Géométrie 362: 361:in his work 348: 336: 324: 317: 310: 268: 218: 205: 198: 193:solid figure 191: 183: 177: 161: 147: 139: 138:or, rarely, 135: 131: 127: 121: 115: 90: 81: 62: 8950:Codimension 8929:-dimensions 8850:Hypersphere 8733:Free module 8493:, page 72, 8391:Berger 1987 8091:3D rotation 8043:Fano planes 7992:3-manifolds 7962:In topology 7751:, then the 6925:, like the 6850:dot product 5884:cylindrical 5549:is written 5374:In calculus 5360:dot product 4805:defined by 4516:, that is, 4383:isomorphism 4206:One can in 3954:Lie algebra 3952:, but is a 3950:associative 3946:commutative 3356:engineering 2721:Dot product 1660:Present day 1607:Lobachevsky 1594:1700s–1900s 1551:Jyeṣṭhadeva 1543:1400s–1700s 1495:Brahmagupta 1318:Lobachevsky 1298:Jyeṣṭhadeva 1248:Brahmagupta 1176:Hypersphere 1148:Tetrahedron 1123:Icosahedron 695:Diophantine 530:written by 511:dot product 384:quaternions 299:coordinates 295:3-manifolds 179:3-manifolds 149:coordinates 76:introducing 9002:3 (number) 8976:Categories 8945:Hyperspace 8825:Hyperplane 8558:Geometry I 8511:References 8423:2023-09-19 8377:Lang  8328:Anton 1994 8316:Anton 1994 8239:2020-08-12 8215:2023-11-07 8190:2020-08-12 8166:2023-09-19 8071:skew lines 7363:through a 6945:), where ( 6868:such that 6629:such that 5352:See also: 5268:See also: 5064:Therefore 4237:See also: 3999:isomorphic 2756:components 2374:generatrix 2242:polyhedron 2128:Polyhedron 1866:hyperplane 1520:al-Yasamin 1464:Apollonius 1459:Archimedes 1449:Pythagoras 1439:Baudhayana 1393:al-Yasamin 1343:Pythagoras 1238:Baudhayana 1228:Archimedes 1223:Apollonius 1128:Octahedron 979:Hypotenuse 854:Similarity 849:Congruence 761:Incidence 712:Symplectic 707:Riemannian 690:Arithmetic 665:Projective 653:Hyperbolic 581:Projecting 291:space-time 84:April 2016 59:references 8835:Hypercube 8813:Polytopes 8793:Minkowski 8788:Hausdorff 8783:Inductive 8748:Spacetime 8699:Dimension 8649:MathWorld 7862:⋅ 7787:⋅ 7783:∇ 7768:∭ 7637:⋅ 7627:Σ 7624:∂ 7620:∮ 7612:Σ 7603:⋅ 7595:× 7592:∇ 7587:Σ 7583:∬ 7515:⋅ 7501:φ 7498:∇ 7473:γ 7469:∫ 7449:φ 7446:− 7430:φ 7402:→ 7387:⊆ 7378:φ 7275:∭ 7196:integrand 7166:a vector 7124:magnitude 7079:∂ 7069:∂ 7063:× 7054:∂ 7044:∂ 6998:∬ 6973:∬ 6804:⋅ 6765:∫ 6749:⋅ 6724:∫ 6623:bijective 6525:∫ 6502:∫ 6453:For some 6417:ϵ 6377:∂ 6361:ϵ 6339:× 6336:∇ 6291:∂ 6276:∂ 6270:− 6261:∂ 6246:∂ 6216:∂ 6201:∂ 6195:− 6186:∂ 6171:∂ 6141:∂ 6126:∂ 6120:− 6111:∂ 6096:∂ 5979:∂ 5975:∂ 5962:∂ 5958:∂ 5945:∂ 5941:∂ 5880:spherical 5837:∂ 5825:⋅ 5822:∇ 5814:this is 5786:∂ 5778:∂ 5763:∂ 5755:∂ 5740:∂ 5732:∂ 5718:⋅ 5715:∇ 5664:→ 5582:∂ 5562:∇ 5519:∂ 5511:∂ 5491:∂ 5483:∂ 5463:∂ 5455:∂ 5443:∇ 5415:→ 4873:δ 4843:δ 4814:π 4660:π 4636:≤ 4630:≤ 4602:→ 4578:π 4552:× 4544:× 4178:× 4167:× 4148:× 4137:× 4118:× 4107:× 3982:× 3918:θ 3915:⁡ 3904:⋅ 3888:⋅ 3859:× 3785:θ 3757:× 3749:− 3738:× 3697:ε 3644:ε 3622:× 3569:− 3523:− 3477:− 3443:× 3402:→ 3387:× 3369:× 3252:θ 3249:⁡ 3243:‖ 3235:‖ 3231:‖ 3223:‖ 3212:⋅ 3094:⋅ 3081:‖ 3073:‖ 2984:‖ 2975:‖ 2964:⋅ 2872:∑ 2791:⋅ 2634:Ellipsoid 2122:Polytopes 2037:π 1995:π 1829:collinear 1637:Minkowski 1556:Descartes 1490:Aryabhata 1485:Kātyāyana 1416:by period 1328:Minkowski 1303:Kātyāyana 1263:Descartes 1208:Aryabhata 1187:Geometers 1171:Tesseract 1035:Trapezoid 1007:Rectangle 800:Dimension 685:Algebraic 675:Synthetic 646:Spherical 631:Euclidean 170:dimension 114:with the 8962:Category 8938:See also 8738:Manifold 8576:Geometry 8556:(1987), 8264:(2013). 8085:See also 8073:in PG(3, 7676:Suppose 7365:gradient 7218:function 7185:integral 7089:‖ 7037:‖ 6903:surfaces 6813:′ 6685: : 6573:′ 6478:along a 6460: : 6065:for the 6061:are the 5890:is, for 4746:Standard 4619:, where 4385:between 3900:‖ 3892:‖ 3884:‖ 3876:‖ 3868:‖ 3850:‖ 3797:between 3280:between 2386:cylinder 2165:Symmetry 2064:3-sphere 1944:2-sphere 1844:parallel 1837:coplanar 1627:Poincaré 1571:Minggatu 1530:Yang Hui 1500:Virasena 1388:Yang Hui 1383:Virasena 1353:Poincaré 1333:Minggatu 1113:Cylinder 1058:Diameter 1017:Rhomboid 974:Altitude 965:Triangle 859:Symmetry 837:Parallel 822:Diagonal 792:Features 789:Concepts 680:Analytic 641:Elliptic 623:Branches 609:Timeline 568:Geometry 314:/breadth 279:universe 154:position 132:3D space 124:geometry 8860:Simplex 8798:Fractal 8362:2323537 8079:regulus 8039:PG(3,2) 7925:normals 7721:compact 7559:of the 7419:. Then 7187:over a 7148:element 7130:of the 7126:of the 6957:in the 6073:-, and 5545:and in 4894:is the 3721:is the 3352:physics 3320:vectors 3318:on two 3276:is the 2709:vectors 2688:regulus 2361:surface 2341:{3,5/2} 2330:{5/2,3} 2319:{5,5/2} 2308:{5/2,5} 2240:Regular 2095:, then 1908:form a 1652:Coxeter 1632:Hilbert 1617:Riemann 1566:Huygens 1525:al-Tusi 1515:Khayyám 1505:Alhazen 1472:1–1400s 1373:al-Tusi 1358:Riemann 1308:Khayyám 1293:Huygens 1288:Hilbert 1258:Coxeter 1218:Alhazen 1196:by name 1133:Pyramid 1012:Rhombus 956:Polygon 908:segment 756:Fractal 739:Digital 724:Complex 605:History 600:Outline 333:History 266:. When 210:numbers 186:(or 3D 142:) is a 136:3-space 72:improve 8817:shapes 8664:, 1991 8608:  8582:  8564:  8545:  8525:  8500:  8470:  8445:  8360:  8272:  8053:using 7927:, and 7755:says: 7741:). If 7201:volume 7191:domain 7183:is an 6931:sphere 6876:) and 6678:For a 6637:) and 6613:where 6482:curve 6472:, the 6408:where 6057:, and 6049:where 5690:scalar 5198:space 4864:where 3688:where 3354:, and 3348:normal 3270:where 2546:where 2149:Class 1964:3-ball 1940:sphere 1922:Sphere 1846:or be 1751:origin 1739:, and 1727:origin 1673:Gromov 1668:Atiyah 1647:Veblen 1642:Cartan 1612:Bolyai 1581:Sakabe 1561:Pascal 1454:Euclid 1444:Manava 1378:Veblen 1363:Sakabe 1338:Pascal 1323:Manava 1283:Gromov 1268:Euclid 1253:Cartan 1243:Bolyai 1233:Atiyah 1143:Sphere 1106:cuboid 1094:Volume 1049:Circle 1002:Square 920:Length 842:Vertex 746:Convex 729:Finite 670:Affine 585:sphere 392:vector 388:scalar 326:length 323:, and 321:/depth 319:height 283:matter 188:domain 61:, but 9007:Space 8921:Eight 8916:Seven 8896:Three 8773:Krull 8358:JSTOR 8139:Notes 8065:PG(3, 7714:= 3, 7563:of a 7216:of a 6959:plane 6929:on a 6856:: → 6699:curve 6617:: → 5874:(see 5368:SO(3) 3324:space 3314:is a 3278:angle 2365:curve 2297:{3,5} 2286:{5,3} 2275:{3,4} 2264:{4,3} 2253:{3,3} 2224:Order 1833:plane 1622:Klein 1602:Gauss 1576:Euler 1510:Sijzi 1480:Zhang 1434:Ahmes 1398:Zhang 1368:Sijzi 1313:Klein 1278:Gauss 1273:Euler 1213:Ahmes 946:Plane 881:Point 817:Curve 812:Angle 589:plane 587:to a 312:width 303:plane 201:tuple 190:), a 158:point 156:of a 32:Space 8906:Five 8901:Four 8881:Zero 8815:and 8606:ISBN 8580:ISBN 8562:ISBN 8543:ISBN 8523:ISBN 8498:ISBN 8468:ISBN 8443:ISBN 8379:1987 8270:ISBN 7981:knot 7561:curl 7370:Let 7355:The 6852:and 6660:< 6649:and 5882:and 5878:for 5272:and 4436:here 4405:and 4361:for 4071:and 3948:nor 3819:and 3338:and 3306:The 3286:and 3190:and 2768:and 2612:and 2584:and 2382:cone 2234:120 1959:ball 1848:skew 1825:line 1760:and 1586:Aida 1203:Aida 1162:Four 1101:Cube 1068:Area 1040:Kite 951:Area 903:Line 541:and 513:and 390:and 367:and 126:, a 8911:Six 8891:Two 8886:One 8598:doi 8350:doi 7986:In 7958:.) 7940:. ( 7212:in 7162:in 7154:on 7134:of 6921:on 6486:⊂ 6069:-, 5703:div 4215:− 1 3997:is 3912:sin 3310:or 3246:cos 2704:box 2231:48 2228:24 2218:, 2211:, 2204:, 2112:= 1 1966:). 1425:BCE 913:ray 271:= 3 203:of 168:of 122:In 8978:: 8646:. 8604:, 8415:. 8364:. 8356:. 8346:90 8344:. 8284:^ 8260:; 8256:; 8232:. 8207:. 8183:. 8158:. 8147:^ 8081:. 8025:. 7955:dS 7736:= 7177:A 7142:, 6949:, 6941:, 6891:A 6888:. 6704:⊂ 6693:→ 6689:⊆ 6675:. 6468:→ 6464:⊆ 6445:. 6053:, 5629:+ 5622:+ 5615:= 5370:. 4458:. 4221:. 3774:. 3426:. 3358:. 3330:× 3292:. 2946:= 2939:|| 2935:|| 2773:= 2766:= 2711:. 2690:. 2622:. 2607:, 2603:, 2599:, 2595:, 2579:, 2575:, 2571:, 2567:, 2563:, 2559:, 2555:, 2551:, 2388:. 2359:A 2140:. 2108:+ 2104:+ 2100:+ 2089:, 2085:, 2081:, 1938:A 1930:A 1864:A 1768:. 1734:, 583:a 329:. 316:, 196:. 134:, 8927:n 8691:e 8684:t 8677:v 8652:. 8600:: 8549:. 8476:. 8451:. 8426:. 8352:: 8278:. 8242:. 8218:. 8193:. 8169:. 8075:q 8067:q 8059:q 8011:3 8005:R 7952:n 7946:S 7943:d 7937:V 7935:∂ 7930:n 7921:V 7916:V 7914:∂ 7910:V 7902:V 7880:. 7877:S 7874:d 7870:) 7866:n 7858:F 7854:( 7833:S 7807:= 7804:V 7801:d 7796:) 7791:F 7778:( 7772:V 7749:V 7744:F 7738:S 7734:V 7732:∂ 7728:S 7716:V 7712:n 7695:n 7690:R 7678:V 7650:. 7646:r 7641:d 7633:F 7616:= 7607:d 7599:F 7526:. 7522:r 7518:d 7512:) 7508:r 7504:( 7493:] 7489:q 7484:, 7480:p 7476:[ 7465:= 7461:) 7457:p 7453:( 7442:) 7438:q 7434:( 7406:R 7397:n 7392:R 7384:U 7381:: 7329:. 7326:z 7323:d 7319:y 7316:d 7312:x 7309:d 7305:) 7302:z 7299:, 7296:y 7293:, 7290:x 7287:( 7284:f 7279:D 7251:, 7248:) 7245:z 7242:, 7239:y 7236:, 7233:x 7230:( 7227:f 7214:R 7210:D 7172:x 7170:( 7168:v 7164:S 7160:x 7156:S 7152:v 7144:t 7140:s 7138:( 7136:x 7107:t 7103:d 7098:s 7094:d 7082:t 7073:x 7057:s 7048:x 7033:) 7030:) 7027:t 7024:, 7021:s 7018:( 7014:x 7010:( 7007:f 7002:T 6994:= 6991:S 6987:d 6982:f 6977:S 6955:T 6951:t 6947:s 6943:t 6939:s 6937:( 6935:x 6923:S 6915:S 6886:C 6882:b 6880:( 6878:r 6874:a 6872:( 6870:r 6866:C 6858:C 6854:r 6833:. 6830:t 6827:d 6823:) 6820:t 6817:( 6809:r 6801:) 6798:) 6795:t 6792:( 6788:r 6784:( 6780:F 6774:b 6769:a 6761:= 6757:r 6753:d 6746:) 6742:r 6738:( 6734:F 6728:C 6710:r 6706:U 6702:C 6695:R 6691:R 6687:U 6683:F 6663:b 6657:a 6647:C 6643:b 6641:( 6639:r 6635:a 6633:( 6631:r 6627:C 6619:C 6615:r 6598:. 6595:t 6592:d 6587:| 6583:) 6580:t 6577:( 6569:r 6563:| 6559:) 6556:) 6553:t 6550:( 6546:r 6542:( 6539:f 6534:b 6529:a 6521:= 6518:s 6515:d 6511:f 6506:C 6488:U 6484:C 6470:R 6466:R 6462:U 6458:f 6427:k 6424:j 6421:i 6396:, 6391:k 6387:F 6381:j 6371:k 6368:j 6365:i 6357:= 6352:i 6348:) 6343:F 6333:( 6310:. 6306:k 6301:) 6294:y 6284:x 6280:F 6264:x 6254:y 6250:F 6239:( 6235:+ 6231:j 6226:) 6219:x 6209:z 6205:F 6189:z 6179:x 6175:F 6164:( 6160:+ 6156:i 6151:) 6144:z 6134:y 6130:F 6114:y 6104:z 6100:F 6089:( 6075:z 6071:y 6067:x 6059:k 6055:j 6051:i 6032:| 6024:z 6020:F 6012:y 6008:F 6000:x 5996:F 5982:z 5965:y 5948:x 5928:k 5921:j 5914:i 5907:| 5892:F 5888:F 5856:. 5851:i 5847:F 5841:i 5833:= 5829:F 5795:. 5789:z 5781:W 5772:+ 5766:y 5758:V 5749:+ 5743:x 5735:U 5726:= 5722:F 5712:= 5708:F 5674:3 5669:R 5659:3 5654:R 5649:: 5645:F 5634:k 5631:W 5627:j 5624:V 5620:i 5617:U 5613:F 5594:. 5591:f 5586:i 5578:= 5573:i 5569:) 5565:f 5559:( 5529:k 5522:z 5514:f 5505:+ 5501:j 5494:y 5486:f 5477:+ 5473:i 5466:x 5458:f 5449:= 5446:f 5419:R 5410:3 5405:R 5400:: 5397:f 5323:3 5318:R 5295:) 5292:3 5289:( 5286:E 5246:3 5241:R 5213:3 5208:R 5180:3 5175:R 5153:V 5128:3 5123:R 5101:V 5079:3 5074:R 5050:. 5045:) 5039:1 5032:0 5025:0 5019:( 5014:= 5009:3 5005:E 5001:, 4996:) 4990:0 4983:1 4976:0 4970:( 4965:= 4960:2 4956:E 4952:, 4947:) 4941:0 4934:0 4927:1 4921:( 4916:= 4911:1 4907:E 4880:j 4877:i 4850:j 4847:i 4839:= 4836:) 4831:j 4827:E 4823:( 4818:i 4793:} 4788:3 4784:E 4780:, 4775:2 4771:E 4767:, 4762:1 4758:E 4754:{ 4751:= 4740:B 4714:x 4711:= 4708:) 4703:3 4699:x 4695:, 4690:2 4686:x 4682:, 4677:1 4673:x 4669:( 4664:1 4639:3 4633:i 4627:1 4606:R 4597:3 4592:R 4587:: 4582:i 4556:R 4548:R 4540:R 4536:= 4531:3 4526:R 4503:R 4476:3 4471:R 4446:V 4420:3 4415:R 4393:V 4369:V 4349:} 4344:3 4340:e 4336:, 4331:2 4327:e 4323:, 4318:1 4314:e 4310:{ 4307:= 4302:B 4278:3 4273:R 4251:V 4213:n 4208:n 4192:0 4189:= 4186:) 4182:B 4174:A 4170:( 4163:C 4159:+ 4156:) 4152:A 4144:C 4140:( 4133:B 4129:+ 4126:) 4122:C 4114:B 4110:( 4103:A 4080:C 4058:B 4054:, 4050:A 4025:) 4022:3 4019:( 4014:o 4011:s 3985:) 3979:, 3974:3 3969:R 3964:( 3926:. 3922:| 3908:| 3896:B 3880:A 3872:= 3863:B 3855:A 3828:B 3806:A 3761:A 3753:B 3746:= 3742:B 3734:A 3707:k 3704:j 3701:i 3674:k 3670:B 3664:j 3660:A 3654:k 3651:j 3648:i 3640:= 3635:i 3631:) 3626:B 3618:A 3614:( 3604:, 3592:] 3587:2 3583:A 3577:1 3573:B 3564:2 3560:B 3554:1 3550:A 3546:, 3541:1 3537:A 3531:3 3527:B 3518:1 3514:B 3508:3 3504:A 3500:, 3495:3 3491:A 3485:2 3481:B 3472:3 3468:B 3462:2 3458:A 3454:[ 3451:= 3447:B 3439:A 3412:3 3407:R 3397:3 3392:R 3382:3 3377:R 3372:: 3340:B 3336:A 3332:B 3328:A 3289:B 3283:A 3273:θ 3255:, 3239:B 3227:A 3220:= 3216:B 3208:A 3193:B 3187:A 3162:, 3155:2 3150:3 3146:A 3142:+ 3137:2 3132:2 3128:A 3124:+ 3119:2 3114:1 3110:A 3104:= 3098:A 3090:A 3084:= 3077:A 3047:, 3042:2 3037:3 3033:A 3029:+ 3024:2 3019:2 3015:A 3011:+ 3006:2 3001:1 2997:A 2993:= 2988:2 2979:A 2972:= 2968:A 2960:A 2944:A 2937:A 2930:A 2912:. 2907:i 2903:B 2897:i 2893:A 2887:3 2882:1 2879:= 2876:i 2868:= 2863:3 2859:B 2853:3 2849:A 2845:+ 2840:2 2836:B 2830:2 2826:A 2822:+ 2817:1 2813:B 2807:1 2803:A 2799:= 2795:B 2787:A 2771:B 2764:A 2740:3 2735:R 2677:π 2672:R 2667:π 2615:H 2609:G 2605:F 2601:C 2597:B 2593:A 2587:M 2581:L 2577:K 2573:J 2569:H 2565:G 2561:F 2557:C 2553:B 2549:A 2534:, 2531:0 2528:= 2525:M 2522:+ 2519:z 2516:L 2513:+ 2510:y 2507:K 2504:+ 2501:x 2498:J 2495:+ 2492:z 2489:x 2486:H 2483:+ 2480:z 2477:y 2474:G 2471:+ 2468:y 2465:x 2462:F 2459:+ 2454:2 2450:z 2446:C 2443:+ 2438:2 2434:y 2430:B 2427:+ 2422:2 2418:x 2414:A 2216:3 2214:H 2209:3 2207:B 2202:3 2200:A 2188:h 2186:I 2180:h 2178:O 2172:d 2170:T 2110:w 2106:z 2102:y 2098:x 2093:) 2091:w 2087:z 2083:y 2079:x 2077:( 2075:P 2069:R 2050:. 2045:2 2041:r 2034:4 2031:= 2028:A 2008:, 2003:3 1999:r 1990:3 1987:4 1982:= 1979:V 1954:P 1949:r 1894:3 1889:R 1742:z 1736:y 1732:x 1706:e 1699:t 1692:v 833:) 829:( 611:) 607:( 497:k 494:, 491:j 488:, 485:i 465:0 462:= 459:a 439:k 436:w 433:+ 430:j 427:v 424:+ 421:i 418:u 415:+ 412:a 409:= 406:q 269:n 260:n 246:, 241:n 236:R 224:n 219:n 206:n 130:( 116:x 97:) 91:( 86:) 82:( 68:. 41:. 34:. 20:)

Index

Three-dimensional
Space
3D (disambiguation)
references
inline citations
improve
introducing
Learn how and when to remove this message

Cartesian coordinate system
geometry
mathematical space
coordinates
position
point
Euclidean space
dimension
physical space
3-manifolds
domain
solid figure
tuple
numbers
Cartesian coordinates
Cartesian coordinate system
classical physics
universe
matter
relativity theory
space-time

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.