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Talk:Barycentric coordinate system

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84: 74: 53: 192:, that is, the point is not changed if all coordinates are multiplied by the same nonzero constant". Most of the other coordinates in that section don't necessarily add up to one; I think they've been chosen to have no denominators or common factors. I changed it back to 1:1:1 to have more consistency in that section. I also added an explicit note that that they're homogeneous so readers can know that they're not necessarily normalized. It seems like the larger section of 1490:
section will be clarified. A section on "triangular BS" deserves to be added to the "Applications" section. However, for mentioning "triangular Bézier surfaces" in the lead, would require to have a wikilink for them, which is not the case. Nevertheless, I agree that my formulation is not correct, and I'll replace "understanding and manipulating Bézier surfaces" by "defining some sorts of Bézier surfaces".
1032:"Trilinear coordinates" redirects to "barycentric coordinates", but they're not the same thing. Essentially, if I put three masses (m,p,q) at the vertices of a given triangle, the point described by those barycentric coordinates is the center of mass of that system. On the other hand, trilinear coordinates describe the relative distances from the three sides of a given triangle. See for example, the 22: 2629:
The (-16 : 33 : 28) point can be verified as circumcenter by any number of methods, so the (17 : 52 : 50) point can’t possibly be the circumcenter. I find the 1 – cos {β, γ, α} cos {γ, α, β} point does not pass any of the tests for circumcenter. It is not on the Euler line, not on any of the triangle
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OK, You are writing for pure mathematicians, I wrote my contribution along Möbius' ideas, which may not fit into Your idea of the article. By the way, the physics needed for understanding of my contributions is highschool level. In order to clear the way for a version You have in mind, I shall remove
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I would like to discuss the appropriateness of this example to illustrate the use of barycentric coordinates relative to a triangle. I have been using barycentric coordinates off-and-on for some time, and there are many geometric uses which are much more accessible. Moreover, the use of baycentric
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the mathematical computations, as an explanation of their meaning. This would allows things to remain understandable for people ignoring physics. For everybody, it is useful to distinguish what is physics, and what is mathematics. In particular, using physics terminology in what is presented as a
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It is a good idea that You moved the general definition on the top. But I regret that You removed my remarks on the geometric meanings. They were essential findings of Möbius and are essential properties for its usage in triangle geometry. I think the new comment on CAD should be replaced/added.
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Like so many math articles on Knowledge written by putative experts, this one is heavy on notation and extraordinarily light on conceptual explanation. I submit that the author, while handy with the formalisms, possesses no actual UNDERSTANDING of the material such as can be conveyed to another
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AS you can read, my edit summary contains "rm ... details that clearly do not belong to the lead". This does not mean that the removed text does not belong to the article. On the opposite, the removed text about triangle geometry must be added to the section "On a plane", when the mess of this
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In accurate, theoretic math no, it doesn't. In the real world of approximated floating-point math, obviously yes, as FP can only work on a fixed footprint to store values. As the triangle approaches degeneration, that is det(A) appoaches 0 this algo will be less and less tolerant to error.
923: 655: 2090:- I separated the special points which don't depend on length/angle (vertices and centroid) from those which do (the rest of them). This is to be clear that in a space which has no notion of length/angle, the coordinates of the former points are still valid (mostly, see next note). 1240:
Hi! I just wanted to say that in section 'Barycentric coordinates on triangles' points ABC and P are extensively referenced to explain something, but that these points are not drawn on any schematic. This leads to understanding the text to be a piece of guesswork at best... Thanks!
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Specifically, in the section describing the coordinates for triangles, it's difficult to tell what subtriangles and vectors and such the author is describing, especially considering they're described with elements the author just introduced.
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The Knowledge articles must be written for the widest possible audience. This includes people who have had US highschool courses, but also people who have forgot these courses and people from other countries that have never learnt the
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I'm interested in the reliability of barycentric coordinates, both the two variable and three variable forms and alternatives when applied to texture mapping for example. Does the accuracy fall for extremely narrow triangles?
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This being said, I have tagged these sections because I think that they deserve to be improved, but I will not edit them soon, because I am working on articles that have a much larger audience. Go ahead yourself !
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Please comment on content, not on contributors. If you see something that you think could be improved, you can either just change it yourself, or suggest the changes here. It might help to review
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I don’t know the original author’s intent here. The errant expression seems to be a typographical misplacement of some sort. It can be simply deleted or replaced by some other helpful expression.
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Good idea. I'm a little hesitant to add a new source to the page before I check out the ones that are already here some more. If it was a typo then it might have been copied from one of them.
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intelligent but as-yet unaware individual. The whole thing just seems so overwhelmingly self-serving, festooned with largely useless (as Professor Paul Bailyn at
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section. I didn't add anything about this since I was mostly trying to simplify the section, but I think it's worth carefully mentioning for readers who care.
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in the section on converting from cartesian coordinates could be expanded to explain how the area interpretation of barycentric coordinates can be recovered.
995:(I cannot verify the reliability of the above equation, but my initial tests have shown no issues (I'll cite a verifiable implementation for test somewhere)) 2690: 1206:
However, it seems to me that this map is onto the convex hull of the polytope. Even the example given of the quadrilateral fails for the non-convex case.
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coordinates is independent of calculus. I feel the example does not really aid the understanding of barycentric coordinates relative to a triangle.
106: 918:{\displaystyle \lambda _{2}={\frac {(x_{2}-x_{1})(y-y_{1})-(x-x_{1})(y_{2}-y_{1})}{(x_{2}-x_{1})(y_{3}-y_{1})-(x_{3}-x_{1})(y_{2}-y_{1})}}\,,} 650:{\displaystyle \lambda _{1}={\frac {(x_{1}-x_{3})(y-y_{3})-(x-x_{3})(y_{1}-y_{3})}{(x_{2}-x_{1})(y_{3}-y_{1})-(x_{3}-x_{1})(y_{2}-y_{1})}}\,,} 1813: 1242: 228: 1326: 1080: 1039:
Another example: the centroid in barycentric coords is (1,1,1). On the other hand, the incenter in trilinear coordinates is (1,1,1).
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Thanks, I was mistaken the first time. It might help to add that reference there. This page needs more inline citations in general.
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It's not wrong. From the article: "The use of colons in the notation of the tuple means that barycentric coordinates are a sort of
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This is an excellent and helpful article, but there is an error in the Barycentric Coordinates given for triangle circumcenters:
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The first and third expressions are indisputable, but the middle expression is clearly incorrect. For example, the triangle {
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should appear. I think,from the present lead a non-mathematician gets no idea of the advantages of barycentric coordinates.--
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I am astonished reading Your rating of my efforts improving the article a "mess". Collaboration looks in a different way.--
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Errr, nevermind. I changed the redirect myself. But there's still a stub there if anyone wants to embellish it...
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to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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points are affinely independent when the dimension of the smallest affine subspace which contains them is
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If you have discovered URLs which were erroneously considered dead by the bot, you can report them with
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of three points in an affine space over a field of characteristic three (e.g. of three points in the
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https://web.archive.org/web/20120419171900/http://faculty.evansville.edu:80/ck6/encyclopedia/ETC.html
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in order to avoid confusion with the points of the triangle. This is in line with the notation on a
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edge perpendicular bisectors, and not a distance of R from any triangle vertex (R = circumradius =
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on Knowledge. If you would like to participate, please visit the project page, where you can join
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before doing mass systematic removals. This message is updated dynamically through the template
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The equation concluded in this section is wrong and doesn't satisfy the actual requirement of
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It can be found in section 1.8 (Linear Varieties Generated by Points). It says that a set of
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Seems like someone just made a typo at some point. I tried to fix this but it was undone...
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To bring the false remark in line with this definition, we can just subtract one from the
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Barycentric coordinates are used for the generation of a special kind of Bezier surfaces,
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If you found an error with any archives or the URLs themselves, you can fix them with
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The first remark on the meaning of affine independence, "this means that there is no
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The area interpretation of the barycentric coordinates can be recovered by applying
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As a cosine equivalent to the sine expression for circumcenter, I would recommend:
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It might be good to change the phrasing to more closely match that in the wiki for
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is wrong, since these coordinates do not sum up to one. It should be 1/3:1/3:1/3.
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Sin2α     :     sin2β      :     sin2γ
2084: 1370: 1064:"Affine Coordinates" redirects to this page but do not appear in the article. -- 102: 2456:. This is a special case of what the text calls the "barycentre of the points 2396: 1901: 1470:
BS, which are rather different from the "usual" ones (tensor product BS). So:
1369:. No special action is required regarding these talk page notices, other than 1050: 1040: 79: 1265:
would derisively have termed it) "alphabet soup." And that's a crying shame.
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More abstractly, generalized barycentric coordinates express a polytope with
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First, it's impossible for any set of points to satisfy this condition.
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that contains all the points, or, equivalently that the points define a
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1 – cos {β, γ, α} cos {γ, α, β} = {51/128, 39/32, 75/64} --: -->
1765:-dimensional affine space, has one affine subspace of dimension 350:{\displaystyle 0<\lambda _{i}\;\forall \;i{\text{ in }}1,2,3} 2655:
This is based on “sin 2α = 2sin α cos α” and “sin {α, β, γ} = {
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wiki which gives a correct definition of affine independence:
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When you have finished reviewing my changes, please set the
983:{\displaystyle \lambda _{3}=1-\lambda _{1}-\lambda _{2}\,.} 2401:. Paris: Hermann, Publishers in arts and science. p. 326. 1321:
for additional information. I made the following changes:
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http://faculty.evansville.edu/ck6/encyclopedia/ETC.html
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sin 2{α, β, γ} = {-√15/8, 33√15/128, 7√15/32} --: -->
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Does the article title really need a disambiguator? —
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The first sentence of the definition currently goes
101:, a collaborative effort to improve the coverage of 1373:using the archive tool instructions below. Editors 2502: 2475: 2448: 2428: 2377: 2340: 2311: 2247: 2227: 2207: 2187: 2141: 2075: 2055: 2035: 2015: 1989: 1969: 1949: 1840:which appears there: "this means that there is no 1803:Reventós Tarrida, Agustí (2011), "Affine spaces", 1783: 1753: 1697: 1657: 1196:{\displaystyle \Delta ^{n-1}\twoheadrightarrow P.} 1195: 1149: 982: 917: 649: 376: 349: 286: 364:(note that the equation has error in calculating 1010:The pdf link you attached is no longer working. 387:What the equation should've been is like this: 1359:This message was posted before February 2018. 2087:, which might be a useful graphic to borrow. 1563:mathematical proof is definitively confusing. 8: 2235:is not a multiple of the characteristic of 1806:Affine Maps, Euclidean Motions and Quadrics 19: 1309:I have just modified one external link on 1284:Wikipedia_talk:WikiProject_Mathematics/FAQ 1121:vertices, regardless of dimension, as the 47: 2594:} = {4, 3, 2} yields the following data: 2494: 2488: 2467: 2461: 2441: 2421: 2352: 2332: 2326: 2303: 2289: 2283: 2272: 2260: 2240: 2220: 2200: 2179: 2160: 2154: 2134: 2068: 2048: 2028: 2002: 1982: 1962: 1942: 1776: 1774: 1746: 1744: 1736:that contains all the points", is false. 1690: 1688: 1649: 1630: 1624: 1172: 1166: 1130: 969: 956: 937: 931: 898: 885: 869: 856: 837: 824: 808: 795: 777: 764: 748: 723: 701: 688: 678: 669: 663: 630: 617: 601: 588: 569: 556: 540: 527: 509: 496: 480: 455: 433: 420: 410: 401: 395: 369: 327: 311: 299: 264: 242: 230: 2319:is called (by an abuse of language) the 322: 317: 259: 254: 196:could use more clarification like this. 975: 910: 642: 49: 2124:Here's a citation for my third claim: 384:although it can be corrected easily.) 1926:I've just put through an edit to the 1922:Special points in some special spaces 1432:More images would clear up derivation 1348:to let others know (documentation at 1286:where points like this are covered. 221:Converting to barycentric coordinates 165:The centroid has barycentrics 1:1:1. 7: 2101:) does not exist. It's one of those 1932:Barycentric coordinates on triangles 212:Barycentric coordinates on triangles 194:Barycentric coordinates on triangles 95:This article is within the scope of 2597:cos {α, β, γ} = {-1/4, 11/16, 7/8} 2188:{\displaystyle a_{1},\ldots ,a_{m}} 1658:{\displaystyle A_{0},\ldots ,A_{n}} 1109:Generalised Barycentric Coordinates 38:It is of interest to the following 2691:High-priority mathematics articles 1169: 319: 256: 158:Error in section on special points 14: 1313:. Please take a moment to review 115:Knowledge:WikiProject Mathematics 2686:Start-Class mathematics articles 2436:is an affine space over a field 1934:section. I'd like to note that: 1930:section, which is a part of the 1777: 1747: 1691: 360:The right equation can be found 118:Template:WikiProject Mathematics 82: 72: 51: 20: 2378:{\displaystyle (1\leq i\leq m)} 1997:for the angles of the triangle 1851:that contains all the points". 1538:my contributions. Go ahead ! -- 1036:page on trilinear coordinates. 135:This article has been rated as 2372: 2354: 1713:; this means that there is no 1577:13:32, 13 September 2020 (UTC) 1548:12:15, 13 September 2020 (UTC) 1184: 1144: 1132: 904: 878: 875: 849: 843: 817: 814: 788: 783: 757: 754: 735: 729: 710: 707: 681: 636: 610: 607: 581: 575: 549: 546: 520: 515: 489: 486: 467: 461: 442: 439: 413: 1: 2624:), …} = {-48, 99, 84} --: --> 2526:Triangle Circumcenter Errata: 1794:Here's a source cited in the 1518:20:40, 7 September 2020 (UTC) 1500:17:12, 7 September 2020 (UTC) 1484:16:06, 7 September 2020 (UTC) 1311:Barycentric coordinate system 1296:18:12, 3 September 2014 (UTC) 1277:17:48, 3 September 2014 (UTC) 1216:11:34, 17 November 2010 (UTC) 1054:23:48, 1 September 2006 (UTC) 1044:23:22, 1 September 2006 (UTC) 109:and see a list of open tasks. 2503:{\displaystyle \lambda _{i}} 1784:{\displaystyle \mathbf {A} } 1754:{\displaystyle \mathbf {A} } 1698:{\displaystyle \mathbf {A} } 1449:17:34, 18 January 2017 (UTC) 1427:22:01, 27 October 2016 (UTC) 1251:09:36, 17 October 2013 (UTC) 1161:vertices – the map is onto: 1069:11:58, 2 November 2007 (UTC) 2707: 1928:Examples of special points 1914:03:18, 27 April 2023 (UTC) 1882:02:49, 27 April 2023 (UTC) 1867:01:26, 27 April 2023 (UTC) 1390:(last update: 5 June 2024) 1306:Hello fellow Wikipedians, 2672:19:15, 2 April 2024 (UTC) 2321:barycentre of the points 2105:like is mentioned in the 1607:18:32, 15 June 2022 (UTC) 1235:04:12, 28 June 2011 (UTC) 1104:10:12, 29 June 2010 (UTC) 1089:05:14, 10 July 2008 (UTC) 1020:19:46, 15 June 2022 (UTC) 182:19:43, 15 June 2022 (UTC) 134: 67: 46: 141:project's priority scale 2520:19:06, 5 May 2023 (UTC) 2119:03:32, 5 May 2023 (UTC) 2076:{\displaystyle \gamma } 2036:{\displaystyle \alpha } 1594:to this linear system. 1302:External links modified 377:{\displaystyle \gamma } 206:03:34, 5 May 2023 (UTC) 190:homogeneous coordinates 98:WikiProject Mathematics 2504: 2477: 2450: 2430: 2379: 2342: 2313: 2288: 2249: 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February 2018 1340:parameter below to 2571:)          : 2500: 2473: 2446: 2426: 2375: 2338: 2309: 2245: 2225: 2205: 2185: 2139: 2103:points at infinity 2073: 2053: 2033: 2013: 1987: 1967: 1947: 1781: 1751: 1695: 1655: 1612:Typo in definition 1415:InternetArchiveBot 1366:InternetArchiveBot 1193: 1147: 1060:Affine coordinates 980: 976: 915: 911: 647: 643: 374: 347: 323: 318: 284: 260: 255: 90:Mathematics portal 34:content assessment 2555:)        : 2483:given the masses 2449:{\displaystyle K} 2429:{\displaystyle E} 2393:Bourbaki, Nicolas 2297: 2248:{\displaystyle K} 2228:{\displaystyle m} 2208:{\displaystyle E} 2142:{\displaystyle m} 1990:{\displaystyle C} 1970:{\displaystyle B} 1950:{\displaystyle A} 1815:978-0-85729-709-9 1391: 908: 640: 330: 267: 155: 154: 151: 150: 147: 146: 2698: 2625:(-16 : 33 : 28) 2605:(-16 : 33 : 28) 2509: 2507: 2506: 2501: 2499: 2498: 2482: 2480: 2479: 2474: 2472: 2471: 2455: 2453: 2452: 2447: 2435: 2433: 2432: 2427: 2411: 2384: 2382: 2381: 2376: 2347: 2345: 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1730:affine subspace 1726: 1718: 1715:affine subspace 1706: 1685: 1684: 1674:Euclidean space 1666: 1645: 1626: 1621: 1620: 1614: 1585: 1530: 1528: 1458: 1456: 1434: 1419: 1414: 1382: 1375:have permission 1365: 1349: 1319:this simple FaQ 1304: 1258: 1223: 1168: 1163: 1162: 1127: 1126: 1111: 1076: 1062: 1030: 965: 952: 933: 928: 927: 894: 881: 865: 852: 833: 820: 804: 791: 787: 773: 760: 744: 719: 697: 684: 680: 665: 660: 659: 626: 613: 597: 584: 565: 552: 536: 523: 519: 505: 492: 476: 451: 429: 416: 412: 397: 392: 391: 366: 365: 307: 296: 295: 238: 227: 226: 223: 214: 160: 120: 117: 114: 111: 110: 88: 81: 61: 32:on Knowledge's 29: 12: 11: 5: 2704: 2702: 2694: 2693: 2688: 2678: 2677: 2628: 2607: 2603: 2599: 2596: 2527: 2524: 2523: 2522: 2512:FionaLovesCats 2497: 2493: 2470: 2466: 2445: 2425: 2414: 2413: 2412: 2406: 2389: 2388: 2387: 2374: 2371: 2368: 2365: 2362: 2359: 2356: 2335: 2331: 2306: 2302: 2296: 2293: 2286: 2281: 2278: 2275: 2271: 2267: 2264: 2244: 2224: 2204: 2182: 2178: 2174: 2171: 2168: 2163: 2159: 2138: 2111:FionaLovesCats 2072: 2052: 2032: 2012: 2009: 2006: 1986: 1966: 1946: 1923: 1920: 1919: 1918: 1917: 1916: 1906:FionaLovesCats 1887: 1859:FionaLovesCats 1820: 1819: 1814: 1779: 1749: 1693: 1652: 1648: 1644: 1641: 1638: 1633: 1629: 1618: 1613: 1610: 1584: 1581: 1580: 1579: 1564: 1527: 1524: 1523: 1522: 1521: 1520: 1503: 1502: 1455: 1452: 1433: 1430: 1409: 1408: 1401: 1334: 1333: 1325:Added archive 1303: 1300: 1299: 1298: 1257: 1254: 1243:145.53.101.116 1239: 1222: 1221:suggested move 1219: 1204: 1203: 1192: 1189: 1186: 1181: 1178: 1175: 1171: 1146: 1143: 1140: 1137: 1134: 1110: 1107: 1075: 1072: 1061: 1058: 1057: 1056: 1029: 1024: 1023: 1022: 993: 991: 990: 979: 972: 968: 964: 959: 955: 951: 948: 945: 940: 936: 925: 914: 906: 901: 897: 893: 888: 884: 880: 877: 872: 868: 864: 859: 855: 851: 848: 845: 840: 836: 832: 827: 823: 819: 816: 811: 807: 803: 798: 794: 790: 785: 780: 776: 772: 767: 763: 759: 756: 751: 747: 743: 740: 737: 734: 731: 726: 722: 718: 715: 712: 709: 704: 700: 696: 691: 687: 683: 677: 672: 668: 657: 646: 638: 633: 629: 625: 620: 616: 612: 609: 604: 600: 596: 591: 587: 583: 580: 577: 572: 568: 564: 559: 555: 551: 548: 543: 539: 535: 530: 526: 522: 517: 512: 508: 504: 499: 495: 491: 488: 483: 479: 475: 472: 469: 466: 463: 458: 454: 450: 447: 444: 441: 436: 432: 428: 423: 419: 415: 409: 404: 400: 373: 346: 343: 340: 337: 334: 326: 321: 314: 310: 306: 303: 283: 280: 277: 274: 271: 263: 258: 253: 250: 245: 241: 237: 234: 222: 219: 213: 210: 209: 208: 198:FionaLovesCats 185: 184: 159: 156: 153: 152: 149: 148: 145: 144: 133: 127: 126: 124: 107:the discussion 94: 93: 77: 65: 64: 56: 44: 43: 37: 26: 13: 10: 9: 6: 4: 3: 2: 2703: 2692: 2689: 2687: 2684: 2683: 2681: 2674: 2673: 2669: 2665: 2660: 2658: 2653: 2651: 2647: 2643: 2638: 2635: 2633: 2623: 2619: 2615: 2611: 2595: 2593: 2588: 2586: 2582: 2578: 2574: 2570: 2566: 2562: 2558: 2554: 2550: 2546: 2542: 2537: 2534: 2531: 2525: 2521: 2517: 2513: 2495: 2491: 2468: 2464: 2443: 2423: 2415: 2409: 2404: 2400: 2399: 2394: 2390: 2385: 2369: 2366: 2363: 2360: 2357: 2333: 2329: 2304: 2300: 2294: 2291: 2284: 2279: 2276: 2273: 2269: 2265: 2262: 2242: 2222: 2202: 2180: 2176: 2172: 2169: 2166: 2161: 2157: 2136: 2128: 2127: 2126: 2125: 2123: 2122: 2121: 2120: 2116: 2112: 2108: 2104: 2100: 2096: 2091: 2088: 2086: 2070: 2050: 2030: 2010: 2007: 2004: 1984: 1964: 1944: 1935: 1933: 1929: 1921: 1915: 1911: 1907: 1903: 1897: 1892: 1891:affine spaces 1888: 1885: 1884: 1883: 1879: 1875: 1871: 1870: 1869: 1868: 1864: 1860: 1855: 1852: 1848: 1844:of dimension 1843: 1834: 1826: 1817: 1812: 1808: 1807: 1801: 1800: 1799: 1797: 1792: 1737: 1732:of dimension 1731: 1724: 1717:of dimension 1716: 1712: 1705:of dimension 1683: 1679: 1675: 1669: 1650: 1646: 1642: 1639: 1636: 1631: 1627: 1617: 1611: 1609: 1608: 1604: 1600: 1595: 1593: 1592:Cramer's rule 1588: 1582: 1578: 1574: 1570: 1565: 1561: 1557: 1552: 1551: 1550: 1549: 1545: 1541: 1534: 1525: 1519: 1515: 1511: 1507: 1506: 1505: 1504: 1501: 1497: 1493: 1488: 1487: 1486: 1485: 1481: 1477: 1473: 1469: 1462: 1453: 1451: 1450: 1446: 1442: 1438: 1431: 1429: 1428: 1423: 1418: 1417: 1406: 1402: 1399: 1395: 1394: 1393: 1386: 1380: 1376: 1372: 1368: 1362: 1357: 1353: 1347: 1343: 1339: 1332: 1328: 1324: 1323: 1322: 1320: 1316: 1312: 1307: 1301: 1297: 1293: 1289: 1285: 1281: 1280: 1279: 1278: 1274: 1270: 1266: 1264: 1255: 1253: 1252: 1248: 1244: 1237: 1236: 1232: 1228: 1220: 1218: 1217: 1213: 1209: 1190: 1187: 1179: 1176: 1173: 1160: 1141: 1138: 1135: 1124: 1120: 1116: 1115: 1114: 1108: 1106: 1105: 1101: 1097: 1091: 1090: 1086: 1082: 1081:68.144.80.168 1073: 1071: 1070: 1067: 1059: 1055: 1052: 1048: 1047: 1046: 1045: 1042: 1037: 1035: 1028: 1025: 1021: 1017: 1013: 1009: 1008: 1007: 1005: 1001: 1000:AvinashANBhat 997: 996: 977: 970: 966: 962: 957: 953: 949: 946: 943: 938: 934: 926: 912: 899: 895: 891: 886: 882: 870: 866: 862: 857: 853: 846: 838: 834: 830: 825: 821: 809: 805: 801: 796: 792: 778: 774: 770: 765: 761: 749: 745: 741: 738: 732: 724: 720: 716: 713: 702: 698: 694: 689: 685: 675: 670: 666: 658: 644: 631: 627: 623: 618: 614: 602: 598: 594: 589: 585: 578: 570: 566: 562: 557: 553: 541: 537: 533: 528: 524: 510: 506: 502: 497: 493: 481: 477: 473: 470: 464: 456: 452: 448: 445: 434: 430: 426: 421: 417: 407: 402: 398: 390: 389: 388: 385: 371: 363: 358: 344: 341: 338: 335: 332: 324: 312: 308: 304: 301: 281: 278: 275: 272: 269: 261: 251: 248: 243: 239: 235: 232: 220: 218: 211: 207: 203: 199: 195: 191: 187: 186: 183: 179: 175: 172:I fixed this. 171: 170: 169: 166: 163: 157: 142: 138: 137:High-priority 132: 129: 128: 125: 108: 104: 100: 99: 91: 85: 80: 78: 75: 71: 70: 66: 62:High‑priority 60: 57: 54: 50: 45: 41: 35: 27: 23: 18: 17: 2661: 2656: 2654: 2649: 2645: 2641: 2639: 2636: 2631: 2627: 2621: 2617: 2613: 2609: 2591: 2589: 2584: 2580: 2576: 2572: 2568: 2564: 2560: 2556: 2552: 2548: 2544: 2540: 2538: 2535: 2532: 2529: 2397: 2320: 2106: 2092: 2089: 1936: 1931: 1927: 1925: 1895: 1856: 1853: 1846: 1835: 1824: 1821: 1809:, Springer, 1805: 1796:affine space 1793: 1738: 1727: 1682:affine space 1672:points in a 1667: 1615: 1596: 1589: 1586: 1583:Cramers Rule 1559: 1529: 1471: 1467: 1457: 1441:104.7.12.222 1439: 1435: 1413: 1410: 1385:source check 1364: 1358: 1345: 1341: 1337: 1335: 1308: 1305: 1267: 1259: 1238: 1224: 1205: 1158: 1122: 1118: 1112: 1096:82.88.245.35 1092: 1077: 1066:91.23.217.47 1063: 1038: 1031: 998: 994: 992: 386: 359: 224: 215: 193: 167: 164: 161: 136: 96: 40:WikiProjects 1352:Sourcecheck 1288:Deltahedron 1269:73.49.1.133 1074:reliability 112:Mathematics 103:mathematics 59:Mathematics 30:Start-class 2680:Categories 2407:2705656758 2107:Definition 1902:hyperplane 1472:triangular 1468:triangular 1422:Report bug 1709:that are 1405:this tool 1398:this tool 1256:Criticism 1034:Mathworld 2664:JFSather 2652:cos γ). 2648:cos β : 2644:cos α : 2395:(1974). 2095:centroid 1874:Apocheir 1569:D.Lazard 1533:D.Lazard 1492:D.Lazard 1461:D.Lazard 1411:Cheers.— 2659:}/2R”. 2657:a, b, c 2592:a, b, c 2398:Algebra 2149:points 2129:"Given 1723:simplex 1540:Ag2gaeh 1510:Ag2gaeh 1476:Ag2gaeh 1338:checked 1315:my edit 1227:Tamfang 139:on the 2539:= 2093:- The 1680:or an 1346:failed 36:scale. 2416:Here 1900:" to 1761:, an 1560:after 1208:Zteve 1123:image 1051:Lunch 1041:Lunch 2668:talk 2516:talk 2403:ISBN 2386:..." 2115:talk 1910:talk 1878:talk 1863:talk 1811:ISBN 1678:flat 1676:, a 1619:Let 1603:talk 1573:talk 1544:talk 1514:talk 1496:talk 1480:talk 1454:Lead 1445:talk 1342:true 1292:talk 1273:talk 1247:talk 1231:talk 1212:talk 1100:talk 1085:talk 1016:talk 1004:talk 362:here 305:< 249:< 236:< 202:talk 178:talk 131:High 2510:". 2195:of 2023:to 1898:- 1 1849:- 1 1827:+ 1 1670:+ 1 1665:be 1379:RfC 1356:). 1344:or 1329:to 329:in 266:in 2682:: 2670:) 2620:+ 2616:+ 2612:(- 2587:) 2583:- 2579:+ 2567:+ 2563:- 2551:+ 2547:+ 2543:(- 2518:) 2492:λ 2367:≤ 2361:≤ 2270:∑ 2170:… 2117:) 2071:γ 2063:, 2051:β 2043:, 2031:α 1977:, 1957:, 1912:) 1904:. 1880:) 1865:) 1857:- 1833:. 1791:. 1725:. 1640:… 1605:) 1575:) 1546:) 1516:) 1498:) 1482:) 1447:) 1392:. 1387:}} 1383:{{ 1354:}} 1350:{{ 1294:) 1275:) 1249:) 1233:) 1214:) 1185:↠ 1177:− 1170:Δ 1139:− 1102:) 1087:) 1018:) 1006:) 967:λ 963:− 954:λ 950:− 935:λ 892:− 863:− 847:− 831:− 802:− 771:− 742:− 733:− 717:− 695:− 667:λ 624:− 595:− 579:− 563:− 534:− 503:− 474:− 465:− 449:− 427:− 399:λ 372:γ 357:. 320:∀ 309:λ 257:∀ 240:λ 204:) 180:) 2666:( 2650:c 2646:b 2642:a 2640:( 2632:a 2622:c 2618:b 2614:a 2610:a 2608:{ 2585:c 2581:b 2577:a 2575:( 2573:c 2569:c 2565:b 2561:a 2559:( 2557:b 2553:c 2549:b 2545:a 2541:a 2514:( 2496:i 2469:i 2465:x 2444:K 2424:E 2410:. 2373:) 2370:m 2364:i 2358:1 2355:( 2334:i 2330:a 2305:i 2301:a 2295:m 2292:1 2285:m 2280:1 2277:= 2274:i 2266:= 2263:g 2243:K 2223:m 2203:E 2181:m 2177:a 2173:, 2167:, 2162:1 2158:a 2137:m 2113:( 2011:C 2008:B 2005:A 1985:C 1965:B 1945:A 1908:( 1896:n 1876:( 1861:( 1847:n 1838:n 1831:n 1825:n 1778:A 1767:n 1763:n 1748:A 1734:n 1719:n 1707:n 1692:A 1668:n 1651:n 1647:A 1643:, 1637:, 1632:0 1628:A 1601:( 1571:( 1542:( 1535:: 1531:@ 1512:( 1494:( 1478:( 1463:: 1459:@ 1443:( 1424:) 1420:( 1407:. 1400:. 1290:( 1271:( 1245:( 1229:( 1210:( 1191:. 1188:P 1180:1 1174:n 1159:n 1145:) 1142:1 1136:n 1133:( 1119:n 1098:( 1083:( 1014:( 1002:( 978:. 971:2 958:1 947:1 944:= 939:3 913:, 905:) 900:1 896:y 887:2 883:y 879:( 876:) 871:1 867:x 858:3 854:x 850:( 844:) 839:1 835:y 826:3 822:y 818:( 815:) 810:1 806:x 797:2 793:x 789:( 784:) 779:1 775:y 766:2 762:y 758:( 755:) 750:1 746:x 739:x 736:( 730:) 725:1 721:y 714:y 711:( 708:) 703:1 699:x 690:2 686:x 682:( 676:= 671:2 645:, 637:) 632:1 628:y 619:2 615:y 611:( 608:) 603:1 599:x 590:3 586:x 582:( 576:) 571:1 567:y 558:3 554:y 550:( 547:) 542:1 538:x 529:2 525:x 521:( 516:) 511:3 507:y 498:1 494:y 490:( 487:) 482:3 478:x 471:x 468:( 462:) 457:3 453:y 446:y 443:( 440:) 435:3 431:x 422:1 418:x 414:( 408:= 403:1 345:3 342:, 339:2 336:, 333:1 325:i 313:i 302:0 282:3 279:, 276:2 273:, 270:1 262:i 252:1 244:i 233:0 200:( 176:( 143:. 42::

Index


content assessment
WikiProjects
WikiProject icon
Mathematics
WikiProject icon
icon
Mathematics portal
WikiProject Mathematics
mathematics
the discussion
High
project's priority scale
ScientistBuilder
talk
19:43, 15 June 2022 (UTC)
homogeneous coordinates
FionaLovesCats
talk
03:34, 5 May 2023 (UTC)
here
AvinashANBhat
talk
ScientistBuilder
talk
19:46, 15 June 2022 (UTC)
Trilinear coordinates
Mathworld
Lunch
23:22, 1 September 2006 (UTC)

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