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Regula falsi

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4570: 1302: 2470:, starting with the interval ). It is mathematically possible with discontinuous functions for the method to fail to converge to a zero limit or sign change, but this is not a problem in practice since it would require an infinite sequence of coincidences for both endpoints to get stuck converging to discontinuities where the sign does not change, for example at 3331: 5075: 4376:
For manual calculation, by calculator, one tends to want to use faster methods, and they usually, but not always, converge faster than bisection. But a computer, even using bisection, will solve an equation, to the desired accuracy, so rapidly that there's no need to try to save time by using a less
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on this point is queried, and the interval is then reduced to bracket the root by keeping the sub-interval with function values of opposite sign on each end. This three step procedure guarantees that the minmax properties of the bisection method are enjoyed by the estimate as well as the superlinear
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Many equations, including most of the more complicated ones, can be solved only by iterative numerical approximation. This consists of trial and error, in which various values of the unknown quantity are tried. That trial-and-error may be guided by calculating, at each step of the procedure, a new
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When solving one equation, or just a few, using a computer, the bisection method is an adequate choice. Although bisection isn't as fast as the other methods—when they're at their best and don't have a problem—bisection nevertheless is guaranteed to converge at a useful rate, roughly halving the
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used above looks arbitrary, but it guarantees superlinear convergence (asymptotically, the algorithm will perform two regular steps after any modified step, and has order of convergence 1.442). There are other ways to pick the rescaling which give even better superlinear convergence rates.
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translates the Latinized version of Pacioli's term into the vernacular "false positions" in 1556. Pacioli's term nearly disappeared in the 16th century European works and the technique went by various names such as "Rule of False", "Rule of Position" and "Rule of False Position".
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joining the endpoints of the function on the current bracketing interval. Essentially, the root is being approximated by replacing the actual function by a line segment on the bracketing interval and then using the classical double false position formula on that line segment.
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failure mode is easy to detect: The same end-point is retained twice in a row. The problem is easily remedied by picking instead a modified false position, chosen to avoid slowdowns due to those relatively unusual unfavorable situations. A number of such improvements to
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The Rule of falsehoode is so named not for that it teacheth anye deceyte or falsehoode, but that by fayned numbers taken at all aduentures, it teacheth to finde out the true number that is demaunded, and this of all the vulgar Rules which are in practise) is y most
735:(九章算術), dated from 200 BC to AD 100, most of Chapter 7 was devoted to the algorithm. There, the procedure was justified by concrete arithmetical arguments, then applied creatively to a wide variety of story problems, including one involving what we would call 4402:
is also changing very little, then Newton's method most likely will not run into trouble, and will converge. So, under those favorable conditions, one could switch to Newton's method if one wanted the error to be very small and wanted very fast convergence.
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Preserving the bracketing and ensuring that the solution estimates lie in the interior of the bracketing intervals guarantees that the solution estimates will converge toward the solution, a guarantee not available with other root finding methods such as
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Since the bracketing interval's length is halved at each step, the bisection method's error is, on average, halved with each iteration. Hence, every 3 iterations, the method gains approximately a factor of 2, i.e. roughly a decimal place, in accuracy.
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Modern versions of the technique employ systematic ways of choosing new test values and are concerned with the questions of whether or not an approximation to a solution can be obtained, and if it can, how fast can the approximation be found.
4873: 4387:, maybe in one of its improved versions, such as the Illinois or Anderson–Björck versions. Or, if even that isn't converging as well as bisection would, switch to bisection, which always converges at a useful, if not spectacular, rate. 2625:
is one of the best methods, and even in its original un-improved version would often be the best choice; for example, when Newton's isn't used because the derivative is prohibitively time-consuming to evaluate, or when Newton's and
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is guaranteed to lie between these two values, that is to say, these values "bracket" the root. A point strictly between these two values is then selected and used to create a smaller interval that still brackets a root. If
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technique of using test ("false") values for the variable and then adjusting the test value according to the outcome. This is sometimes also referred to as "guess and check". Versions of the method predate the advent of
2431:). In addition to sign changes, it is also possible for the method to converge to a point where the limit of the function is zero, even if the function is undefined (or has another value) at that point (for example at 4681: 3517: 2202:
The above formula is also used in the secant method, but the secant method always retains the last two computed points, and so, while it is slightly faster, it does not preserve bracketing and may not converge.
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Now an item is purchased jointly; everyone contributes 8 , the excess is 3; everyone contributes 7, the deficit is 4. Tell: The number of people, the item price, what is each? Answer: 7 people, item price 53.
552: 5387: 4165: 1768: 3855: 3975: 4759: 109:. This guess is a good choice since it produces an integer value. However, 4 is not the solution of the original equation, as it gives a value which is three times too small. To compensate, multiply 438: 4551: 2404:
is negative on the interval) and thus the width of the bracket never falls below 1. Hence, the right endpoint approaches 0 at a linear rate (the number of accurate digits grows linearly, with a
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The point selected in any current interval can be thought of as an estimate of the solution. The different variations of this method involve different ways of calculating this solution estimate.
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always converges, and has versions that do well at avoiding slowdowns, makes it a good choice when speed is needed. However, its rate of convergence can drop below that of the bisection method.
3908: 1259: 3756: 3630: 3326:{\displaystyle {\begin{aligned}m'&=1-{\frac {f(c_{k})}{f(b_{k})}},\\m&={\begin{cases}m'&{\text{if }}m'>0,\\{\frac {1}{2}}&{\text{otherwise.}}\end{cases}}\end{aligned}}} 4170: 2390: 3562: 2602:
always converges, usually considerably faster than bisection, there are situations that can slow its convergence – sometimes to a prohibitive degree. That problem isn't unique to
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Several 16th century European authors felt the need to apologize for the name of the method in a science that seeks to find the truth. For instance, in 1568 Humphrey Baker says:
2862: 5588: 5486: 4361: 2696: 5281: 4857: 3695: 1156:, a root has been found and the algorithm stops. Otherwise, the procedure is repeated as often as necessary to obtain an approximation to the root to any desired accuracy. 889:
The method of false position provides an exact solution for linear functions, but more direct algebraic techniques have supplanted its use for these functions. However, in
5070:{\displaystyle \ B(n)=\sum _{k=0}^{n-1}3\cdot {\frac {1}{2^{k}}}=3\left({\frac {1-({\tfrac {1}{2}})^{n-1+1}}{1-{\tfrac {1}{2}}}}\right)=6\left(1-{\frac {1}{2^{n}}}\right)} 344: 5531: 5429: 7229: 3668: 671: 4804: 2610:
of the numerical equation-solving methods can have a slow-convergence or no-convergence problem under some conditions. Sometimes, Newton's method and the secant method
863:, probably taking the term from Fibonacci. Other European writers would follow Pacioli and sometimes provided a translation into Latin or the vernacular. For instance, 800:("reckoning by two errors"). It was used for centuries to solve practical problems such as commercial and juridical questions (estate partitions according to rules of 4380:
An exception would be if the computer program had to solve equations very many times during its run. Then the time saved by the faster methods could be significant.
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are always of opposite sign the “subtraction” in the numerator of the improved formula is effectively an addition (as is the subtraction in the denominator too).
5818:{\displaystyle \ {\hat {x}}~=~{\frac {~x_{1}F(x_{2})-x_{2}F(x_{1})~}{F(x_{2})-F(x_{1})}}~=~{\frac {~2\times 1.75+3\times 1.5~}{1.75+1.5}}~\approx ~2.4615\ } 5081: 3982: 6871: 4364:
convergence of the secant method. And, is observed to outperform both bisection and interpolation based methods under smooth and non-smooth functions.
1607: 4412: 3352: 731: 1047:, but it can fail to find a root under certain circumstances and it may be computationally costly since it requires a computation of the function's 1433: 37:
is a very old method for solving an equation with one unknown; this method, in modified form, is still in use. In simple terms, the method is the
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also has the same sign) will remain fixed for all subsequent iterations while the converging endpoint becomes updated. As a result, unlike the
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A club-rush grew 1 unit on its first day. At the end of each day, the plant has grown by 2 times as much as the previous day's growth.
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on the initial bracket . The left end, −1, is never replaced (it does not change at first and after the first three iterations,
7353: 6942: 2008:{\displaystyle c_{k}=b_{k}-f(b_{k}){\frac {b_{k}-a_{k}}{f(b_{k})-f(a_{k})}}={\frac {a_{k}f(b_{k})-b_{k}f(a_{k})}{f(b_{k})-f(a_{k})}}.} 457: 7164: 7145: 5288: 801: 4569: 4106: 3064:
by some scholars. Ford (1995) summarizes and analyzes this and other similar superlinear variants of the method of false position.
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For discontinuous functions, this method can only be expected to find a point where the function changes sign (for example at
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and the left-hand endpoint has been retained. (So far, that's the same as ordinary Regula Falsi and the Illinois algorithm.)
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is aimed at solving problems involving direct proportion. Such problems can be written algebraically in the form: determine
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will be very close together, and nearly always of the same sign. Such a subtraction can lose significant digits. Because
864: 7381: 3864: 7386: 6840: 1199: 3705: 3587: 1009: 4315:{\displaystyle \rho _{k}\equiv \min \left\{\epsilon 2^{n_{1/2}+n_{0}-j}-{\frac {b-a}{2}},|x_{t}-x_{1/2}|\right\}} 7371: 7315: 7176:"Mathematical Philology in the Treatise on Double False Position in an Arabic Manuscript at Columbia University" 1313:
The convergence rate of the bisection method could possibly be improved by using a different solution estimate.
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have been proposed; two of them, the Illinois algorithm and the Anderson–Björk algorithm, are described below.
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error with each iteration – gaining roughly a decimal place of accuracy with every 3 iterations.
3015:{\displaystyle c_{k}={\frac {f(b_{k})a_{k}-{\frac {1}{2}}f(a_{k})b_{k}}{f(b_{k})-{\frac {1}{2}}f(a_{k})}},} 2325: 7320: 6966: 3522: 2846:{\displaystyle c_{k}={\frac {{\frac {1}{2}}f(b_{k})a_{k}-f(a_{k})b_{k}}{{\frac {1}{2}}f(b_{k})-f(a_{k})}}} 2420: 1040: 894: 707: 4462: 2290:, the width of the bracket does not tend to zero (unless the zero is at an inflection point around which 7412: 6986:
Dowell, M.; Jarratt, P. (1971). "A modified regula falsi method for computing the root of an equation".
5536: 5434: 4330: 3076:-th iteration the bracketing interval is and that the functional value of the new calculated estimate 743:. A more typical example is this "joint purchase" problem involving an "excess and deficit" condition: 7057: 7391: 7366: 5230: 4809: 859: 715: 444: 284:
is aimed at solving more difficult problems that can be written algebraically in the form: determine
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grew 3 units on its first day. At the end of each day, the plant is observed to have grown by
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Issues in the Origin and Development of Hisab al-Khata'ayn (Calculation by Double False Position)
5497: 5395: 890: 789: 7422: 7343: 7287: 7282: 7204:(On a previously unpublished treatise on Double False Position in a medieval Arabic manuscript.) 6624: 3635: 1164: 1044: 837:(AD 1202) to explaining and demonstrating the uses of double false position, terming the method 629: 4768: 4383:
Then, a program could start with Newton's method, and, if Newton's isn't converging, switch to
7338: 7160: 7141: 7107: 6938: 6932: 6928: 6907: 6865: 6805: 6754: 6748: 6724: 6696: 6665: 6630: 804:), as well as purely recreational problems. The algorithm was often memorized with the aid of 6753:. Science and Civilisation in China. Vol. 3. Cambridge University Press. pp. 147–. 6716: 6661: 6654: 7254: 7187: 7099: 7030: 6995: 6835: 4864: 4594: 2287: 2277: 1175: 691: 677: 3567: 447:. By using a pair of test inputs and the corresponding pair of outputs, the result of this 178: 821: 620: 38: 7088:"An Enhancement of the Bisection Method Average Performance Preserving Minmax Optimality" 4564:
Suppose it is day 3. The club-rush is taller than the bulrush by 1.75 units. ∎
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are of opposite signs, at each step, one of the end-points will get closer to a root of
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The first two iterations of the false position method. The red curve shows the function
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Improved Algorithms of Illinois-type for the Numerical Solution of Nonlinear Equations
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Regola Helcataym (vocabulo Arabo) che in nostra lingua vuol dire delle false Positioni
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Suppose it is day 2. The club-rush is shorter than the bulrush by 1.5 units.
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estimate for the solution. There are many ways to arrive at a calculated-estimate and
7442: 7361: 7310: 7199: 7119: 2428: 2316:, which is used to pick the false position, does not improve as rapidly as possible. 1414: 1168: 740: 687: 54: 7007: 5213:{\displaystyle \ C(n)=\sum _{k=0}^{n-1}2^{k}={\frac {~~1-2^{n}}{\ 1-2\ }}=2^{n}-1\ } 4091:{\displaystyle \delta \equiv \min\{\kappa _{1}|b-a|^{\kappa _{2}},|x_{1/2}-x_{f}|\}} 1043:
that can be used to obtain approximations to such a root. One of the most common is
1328: 850: 817: 6832:. Eighth North African Meeting on the History of Arab Mathematics. Radès, Tunisia. 6799: 1743:{\displaystyle f(b_{k})+{\frac {f(b_{k})-f(a_{k})}{b_{k}-a_{k}}}(c_{k}-b_{k})=0.} 3428:{\displaystyle \kappa _{1}\in (0,\infty ),\kappa _{2}\in \left[1,1+\phi \right)} 1321: 1055:. These methods proceed by producing a sequence of shrinking intervals , at the 833: 769: 736: 20: 2655:-value of the retained end point in the next estimate computation when the new 7264: 7191: 6911: 6618: 6609:
After running this code, the final answer is approximately 0.865474033101614.
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Given an equation, move all of its terms to one side so that it has the form,
7111: 2690:)), meaning that the end point of the previous step will be retained. Hence: 2199:. This process is repeated until the root is approximated sufficiently well. 1565:{\displaystyle y-f(b_{k})={\frac {f(b_{k})-f(a_{k})}{b_{k}-a_{k}}}(x-b_{k}).} 2614:
instead of converging – and often do so under the same conditions that slow
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wrote a now-lost treatise on the use of double false position, known as the
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Two basic types of false position method can be distinguished historically,
7207: 6847: 4417:, a root finding problem can be translated to modern language as follows: 7021:
King, Richard F. (October 1983). "Anderson-Bjorck for Linear Sequences".
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would be memorized and carried out by rote. Indeed, the rule as given by
57:, which asks for a solution of (written in modern notation) the equation 47: 7042: 6999: 5837:, is an example of the Illinois algorithm. To find the positive number 4426: 785: 781: 711: 43: 1186:, the current bracketing interval is , then the new solution estimate 16:
Numerical method used to approximate solutions of univariate equations
4676:{\displaystyle B(n)=\sum _{i=1}^{n}3\cdot {\frac {1}{2^{i-1}}}\quad } 7175: 7103: 7034: 4585:
To understand this, we shall model the heights of the plants on day
3512:{\displaystyle n_{1/2}\equiv \lceil (b_{0}-a_{0})/2\epsilon \rceil } 1051:. Other methods are needed and one general class of methods are the 872:
appears as the Latinized version of Rule of False as early as 1690.
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The Nine Chapters on the Mathematical Art: Companion and Commentary
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Shen, Kangshen; Crossley, John N.; Lun, Anthony Wah-Cheung (1999).
2573:{\displaystyle f(x)={\frac {1}{(x-1)^{2}}}+{\frac {1}{(x+1)^{2}}}.} 7087: 4568: 4377:
reliable method—and every method is less reliable than bisection.
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For simple roots, Anderson–Björck performs very well in practice.
1424: 1300: 768:). The oldest surviving writing on double false position from the 7062:
Proceedings of 2011 World Congress on Engineering and Technology
6627:, another root-finding method based on the false position method 6621:, a variation with guaranteed minmax and superlinear convergence 846: 777: 7211: 1110:
has opposite signs. Under the continuity assumption, a root of
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double false position provides the exact solution, while for a
547:{\displaystyle x={\frac {b_{1}x_{2}-b_{2}x_{1}}{b_{1}-b_{2}}},} 247:. The correct answer is then found by proportional adjustment, 7157:
Fibonacci's Liber Abaci, Leonardo Pisano's Book of Calculation
5382:{\displaystyle \ F(n):=C(n)-B(n)={\frac {6}{2^{n}}}+2^{n}-7\ } 4160:{\displaystyle x_{\text{ITP}}\equiv x_{1/2}-\sigma \rho _{k}} 3850:{\displaystyle x_{f}\equiv {\frac {bf(a)-af(b)}{f(a)-f(b)}}} 3025:
down-weighting one of the endpoint values to force the next
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is the point selected, then the smaller interval goes from
3970:{\displaystyle \sigma \equiv {\text{sign}}(x_{1/2}-x_{f})} 2018:
This last symmetrical form has a computational advantage:
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http://facstaff.uindy.edu/~oaks/Biblio/COMHISMA8paper.doc
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Mathematics and the Sciences of the Heavens and the Earth
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A History of Algorithms: From the Pebble to the Microchip
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are known. The method begins by using a test input value
4754:{\displaystyle C(n)=\sum _{i=1}^{n}1\cdot 2^{i-1}\quad } 1285:, thereby guaranteeing convergence toward the solution. 5854:, the equation is transformed into a root-finding form 3702:
Calculate the bisection and the regula falsi points:
7086:
Oliveira, I. F. D.; Takahashi, R. H. C. (2020-12-06).
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Elementary Numerical Analysis: an algorithmic approach
5010: 4968: 3592: 1099:-values, initially found by trial-and-error, at which 897:
used in iterative numerical approximation techniques.
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Double false position is mathematically equivalent to
113:(currently set to 4) by 3 and substitute again to get 82:. This is solved by false position. First, guess that 5606: 5539: 5500: 5437: 5398: 5291: 5233: 5084: 4876: 4812: 4771: 4691: 4606: 4507: 4465: 4333: 4173: 4109: 3985: 3918: 3867: 3765: 3708: 3676: 3638: 3590: 3570: 3525: 3441: 3355: 3162: 2865: 2699: 2486: 2328: 1771: 1610: 1436: 1202: 632: 460: 433:{\displaystyle f(x_{1})=b_{1},\qquad f(x_{2})=b_{2}.} 358: 299: 181: 4546:{\displaystyle (4+{\frac {8}{10}}+{\frac {6}{130}})} 2280:) in the interval, then one endpoint (the one where 7405: 7352: 7329: 7296: 7273: 7245: 3110:But, whereas the Illinois algorithm would multiply 1320:method calculates the new solution estimate as the 725:as a purely arithmetical algorithm. In the ancient 6888:, vol. I, Venice, 1556, p. fol. 238, v, 6653: 5817: 5582: 5525: 5480: 5423: 5381: 5275: 5212: 5069: 4851: 4798: 4753: 4675: 4545: 4490: 4454:that the club-rush becomes as tall as the bulrush. 4355: 4314: 4159: 4090: 3969: 3902: 3849: 3750: 3689: 3662: 3624: 3576: 3556: 3511: 3427: 3325: 3036:to occur on that side of the function. The factor 3014: 2845: 2572: 2384: 2305:). As a consequence, the linear approximation to 2007: 1742: 1564: 1253: 665: 546: 432: 338: 199: 6660:(2nd ed.), Addison Wesley Longman, p.  5950:/* a,b: endpoints of an interval where we search 4187: 3992: 3903:{\displaystyle x_{t}\equiv x_{f}+\sigma \delta } 2319:One example of this phenomenon is the function 1182:of the bracketing interval. That is, if at step 702:The simple false position technique is found in 7136:Burden, Richard L.; Faires, J. Douglas (2000). 7058:"A family of regula falsi root-finding methods" 6965:, Technical Report, University of Essex Press, 1590:-intercept of this line, that is, the value of 1254:{\displaystyle c_{k}={\frac {a_{k}+b_{k}}{2}}.} 954:and is a solution of the original equation. If 877: 6067:/* starting values at endpoints of interval */ 3751:{\displaystyle x_{1/2}\equiv {\frac {a+b}{2}}} 3625:{\displaystyle {\tfrac {1}{2}}(1+{\sqrt {5}})} 2587:avoids this hypothetical convergence problem. 7223: 3142:, Anderson–Björck algorithm multiplies it by 229:, and finding the corresponding output value 8: 6923: 6921: 4085: 3995: 3506: 3463: 3103:. In this case, the new bracketing interval 6409:/* fc and fa have same sign, copy c to a */ 6307:/* fc and fb have same sign, copy c to b */ 3861:Perturb the estimator towards the center: 7230: 7216: 7208: 6823: 6821: 6493:/* fc * f_ very small (looks like zero) */ 4103:Project the estimator to minmax interval: 2674:)) has the same sign as the previous one ( 1178:, calculates the solution estimate as the 788:. He justified the technique by a formal, 53:As an example, consider problem 26 in the 7092:ACM Transactions on Mathematical Software 6970: 6906:(2nd ed.). McGraw-Hill. p. 40. 6695:, vol. II, Dover, pp. 437–441, 5953:e: half of upper bound for relative error 5756: 5735: 5713: 5689: 5673: 5657: 5641: 5631: 5611: 5610: 5605: 5553: 5538: 5508: 5499: 5451: 5436: 5406: 5397: 5364: 5349: 5340: 5290: 5232: 5195: 5162: 5143: 5134: 5118: 5107: 5083: 5054: 5045: 5009: 4983: 4967: 4955: 4937: 4928: 4910: 4899: 4875: 4811: 4770: 4738: 4722: 4711: 4690: 4658: 4649: 4637: 4626: 4605: 4530: 4517: 4506: 4475: 4464: 4344: 4332: 4302: 4292: 4288: 4275: 4266: 4245: 4228: 4211: 4207: 4202: 4178: 4172: 4151: 4131: 4127: 4114: 4108: 4080: 4074: 4057: 4053: 4044: 4033: 4028: 4023: 4008: 4002: 3984: 3958: 3941: 3937: 3925: 3917: 3885: 3872: 3866: 3779: 3770: 3764: 3730: 3717: 3713: 3707: 3681: 3675: 3637: 3612: 3591: 3589: 3569: 3530: 3524: 3495: 3486: 3473: 3450: 3446: 3440: 3391: 3360: 3354: 3307: 3295: 3269: 3251: 3222: 3201: 3188: 3163: 3161: 2997: 2977: 2965: 2947: 2934: 2914: 2905: 2892: 2879: 2870: 2864: 2831: 2809: 2789: 2781: 2768: 2749: 2736: 2716: 2713: 2704: 2698: 2558: 2536: 2524: 2502: 2485: 2367: 2351: 2327: 1990: 1968: 1947: 1931: 1915: 1899: 1892: 1877: 1855: 1837: 1824: 1817: 1808: 1789: 1776: 1770: 1725: 1712: 1696: 1683: 1668: 1646: 1633: 1621: 1609: 1550: 1528: 1515: 1500: 1478: 1465: 1453: 1435: 1339:-th iteration the bracketing interval is 1236: 1223: 1216: 1207: 1201: 923:is some function of the unknown variable 732:The Nine Chapters on the Mathematical Art 631: 570:Gesse at this woorke as happe doth leade. 532: 519: 507: 497: 484: 474: 467: 459: 421: 405: 385: 369: 357: 298: 180: 6804:. Oxford University Press. p. 358. 1601:, and substitute these values to obtain 1361:. Construct the line through the points 812:and balance-scale diagrams explained by 752:Between the 9th and 10th centuries, the 610:In crossewaies multiplye contrary kinde, 6956: 6954: 6686: 6684: 6682: 6680: 6641: 931:that satisfies this equation, that is, 6870:: CS1 maint: archived copy as title ( 6863: 6647: 6645: 4765:For the sake of better notations, let 1417:or chord of the graph of the function 614:All truthe by falsehode for to fynde. 590:That truth by it will soone be founde. 5833:This example program, written in the 3154:has one of the two following values: 2385:{\displaystyle f(x)=2x^{3}-4x^{2}+3x} 796:, double false position was known as 690:that can be successively improved by 586:Suche falsehode is so good a grounde, 574:By chaunce to truthe you may procede. 7: 3670:the ITP method calculates the point 3557:{\displaystyle n_{0}\in [0,\infty )} 2276:is of constant sign (so there is no 2083:is calculated as above and then, if 1335:More precisely, suppose that in the 1008:are of opposite signs, then, by the 820:, all three being mathematicians of 6902:Conte, S.D.; Boor, Carl de (1965). 4491:{\displaystyle (2+{\frac {6}{13}})} 1309:and the blue lines are the secants. 1174:The simplest variation, called the 3548: 3378: 2651:The Illinois algorithm halves the 602:With to much ioyne to fewe againe, 582:Although no truthe therein be don. 578:And firste woorke by the question, 14: 5583:{\displaystyle \ F(x_{2})=F(3)\ } 5481:{\displaystyle \ F(x_{1})=F(2)\ } 4356:{\displaystyle f(x_{\text{ITP}})} 1413:, as illustrated. This line is a 893:, double false position became a 831:) devoted Chapter 13 of his book 133:, verifying that the solution is 7428:Sidi's generalized secant method 6715:Chabert, Jean-Luc, ed. (2012) . 5597:Estimated root (1st iteration): 4806:Rewrite the plant height series 4421:Excess And Deficit Problem #11: 845:method that he had learned from 808:, such as a verse attributed to 606:To to fewe adde to manye plaine. 7418:Inverse quadratic interpolation 5276:{\displaystyle \ (C(n)-B(n))\ } 4852:{\displaystyle \ B(n),\ C(n)\ } 4750: 4672: 790:Euclidean-style geometric proof 721:Double false position arose in 598:From to fewe take to fewe also. 394: 6717:"3. Methods of False Position" 5956:m: maximal number of iteration 5741: 5728: 5719: 5706: 5695: 5682: 5663: 5650: 5616: 5574: 5568: 5559: 5546: 5472: 5466: 5457: 5444: 5334: 5328: 5319: 5313: 5304: 5298: 5267: 5264: 5258: 5249: 5243: 5237: 5097: 5091: 4980: 4964: 4889: 4883: 4843: 4837: 4825: 4819: 4701: 4695: 4616: 4610: 4540: 4508: 4485: 4466: 4350: 4337: 4303: 4267: 4081: 4045: 4024: 4009: 3964: 3930: 3841: 3835: 3826: 3820: 3812: 3806: 3794: 3788: 3690:{\displaystyle x_{\text{ITP}}} 3619: 3603: 3551: 3539: 3492: 3466: 3381: 3369: 3228: 3215: 3207: 3194: 3003: 2990: 2971: 2958: 2940: 2927: 2898: 2885: 2837: 2824: 2815: 2802: 2774: 2761: 2742: 2729: 2555: 2542: 2521: 2508: 2496: 2490: 2338: 2332: 2270:. If the second derivative of 1996: 1983: 1974: 1961: 1953: 1940: 1921: 1908: 1883: 1870: 1861: 1848: 1814: 1801: 1731: 1705: 1674: 1661: 1652: 1639: 1627: 1614: 1556: 1537: 1506: 1493: 1484: 1471: 1459: 1446: 1145:. In the improbable case that 1134:has the sign opposite that of 642: 636: 411: 398: 375: 362: 309: 303: 1: 7140:(7th ed.). Brooks/Cole. 4445:of the previous day's growth. 2218:Since the initial end-points 2021:As a solution is approached, 1095:These methods start with two 6723:. Springer. pp. 86–91. 4581:), and the approximated root 4407:Example: Growth of a bulrush 1091:Two-point bracketing methods 1053:two-point bracketing methods 339:{\displaystyle f(x)=ax+c=0,} 6937:. Dover. pp. 231–232. 6779:www-groups.dcs.st-and.ac.uk 5526:{\displaystyle \ x_{2}=3\ } 5424:{\displaystyle \ x_{1}=2\ } 4396:has become very small, and 1427:, its equation is given by 1018:has a root in the interval 962:and there exist two points 794:medieval Muslim mathematics 7470: 7247:Bracketing (no derivative) 7023:Mathematics of Computation 4327:The value of the function 3663:{\displaystyle j=0,1,2...} 3342: 2438:for the function given by 1753:Solving this equation for 1010:intermediate value theorem 792:. Within the tradition of 666:{\displaystyle f(x)=ax+c,} 594:From many bate to many mo, 7192:10.1163/24519197-BJA10007 4799:{\displaystyle \ k=i-1~.} 3068:Anderson–Björck algorithm 2630:have failed to converge. 7056:Galdino, Sérgio (2011). 6828:Schwartz, R. K. (2004). 6656:A History of Mathematics 6652:Katz, Victor J. (1998), 5875: 4577:, its exact root (point 4368:Practical considerations 3056:The above adjustment to 2628:Successive-Substitutions 2606:: Other than bisection, 2115:have the same sign, set 89:to obtain, on the left, 31:method of false position 7454:Latin words and phrases 7449:Root-finding algorithms 7397:Splitting circle method 7382:Jenkins–Traub algorithm 7239:Root-finding algorithms 7180:Philological Encounters 6931:; Björck, Åke (2003) . 3697:following three steps: 1297:(false position) method 1041:root-finding algorithms 905:provides one of these. 7387:Lehmer–Schur algorithm 7174:Roberts, A.M. (2020). 6834:Available online at: 6693:History of Mathematics 6691:Smith, D. E. (1958) , 5835:C programming language 5819: 5584: 5527: 5482: 5425: 5383: 5277: 5214: 5129: 5071: 4921: 4853: 4800: 4755: 4727: 4677: 4642: 4593:= 1, 2, 3...) after a 4582: 4567: 4547: 4492: 4357: 4316: 4161: 4092: 3971: 3904: 3851: 3752: 3691: 3664: 3626: 3578: 3558: 3513: 3429: 3327: 3016: 2847: 2647:The Illinois algorithm 2574: 2386: 2009: 1744: 1566: 1310: 1255: 1123:to the endpoint where 895:root-finding algorithm 882: 762:Book of the Two Errors 750: 708:Babylonian mathematics 667: 548: 434: 340: 201: 7413:Fixed-point iteration 7155:Sigler, L.E. (2002). 5820: 5585: 5528: 5483: 5426: 5384: 5278: 5215: 5103: 5072: 4895: 4854: 4801: 4756: 4707: 4678: 4622: 4572: 4548: 4493: 4419: 4411:In chapter 7 of 4358: 4317: 4162: 4093: 3972: 3905: 3852: 3753: 3692: 3665: 3627: 3584:is the golden ration 3579: 3577:{\displaystyle \phi } 3559: 3514: 3430: 3328: 3087:has the same sign as 3017: 2848: 2575: 2387: 2236:are chosen such that 2010: 1745: 1567: 1304: 1256: 745: 706:tablets from ancient 668: 549: 435: 341: 282:Double false position 202: 200:{\displaystyle ax=b,} 164:Simple false position 158:double false position 154:simple false position 35:false position method 7372:Durand–Kerner method 7316:Newton–Krylov method 6961:Ford, J. A. (1995), 5604: 5537: 5498: 5435: 5396: 5289: 5231: 5227:to find the root of 5082: 4874: 4810: 4769: 4689: 4604: 4505: 4463: 4331: 4171: 4107: 3983: 3916: 3865: 3763: 3706: 3674: 3636: 3632:, in each iteration 3588: 3568: 3523: 3439: 3353: 3160: 3072:Suppose that in the 2863: 2697: 2484: 2326: 2070:At iteration number 1769: 1608: 1434: 1200: 860:Summa de arithmetica 776:(10th century), an 727:Chinese mathematical 716:Egyptian mathematics 630: 458: 445:linear interpolation 356: 349:if it is known that 297: 236:by multiplication: 179: 148:Two historical types 7321:Steffensen's method 7159:. Springer-Verlag. 4390:When the change in 2585:method of bisection 2406:rate of convergence 1081:contains a root of 1059:th step, such that 960:continuous function 802:Quranic inheritance 780:mathematician from 7354:Polynomial methods 7138:Numerical Analysis 7000:10.1007/BF01934364 6929:Dahlquist, Germund 5815: 5580: 5523: 5478: 5421: 5379: 5273: 5210: 5067: 5019: 4977: 4849: 4796: 4751: 4673: 4583: 4543: 4488: 4353: 4312: 4157: 4088: 3967: 3900: 3847: 3748: 3687: 3660: 3622: 3601: 3574: 3554: 3509: 3425: 3323: 3321: 3314: 3062:Illinois algorithm 3012: 2843: 2570: 2382: 2005: 1740: 1562: 1311: 1264:This ensures that 1251: 891:numerical analysis 885:Numerical analysis 849:sources. In 1494, 827:Leonardo of Pisa ( 798:hisāb al-khaṭāʾayn 766:Kitāb al-khaṭāʾayn 663: 544: 430: 336: 197: 7436: 7435: 7392:Laguerre's method 7367:Bairstow's method 6934:Numerical Methods 6811:978-7-03-006101-0 6760:978-0-521-05801-8 6730:978-3-642-18192-4 6702:978-0-486-20430-7 6671:978-0-321-01618-8 5814: 5808: 5802: 5798: 5785: 5761: 5755: 5749: 5745: 5700: 5636: 5630: 5624: 5619: 5609: 5579: 5542: 5522: 5503: 5477: 5440: 5420: 5401: 5378: 5355: 5294: 5272: 5236: 5209: 5186: 5184: 5172: 5151: 5148: 5087: 5060: 5022: 5018: 4976: 4943: 4879: 4848: 4833: 4815: 4792: 4774: 4670: 4573:Plot of function 4538: 4525: 4483: 4414:The Nine Chapters 4347: 4261: 4117: 3928: 3845: 3746: 3684: 3617: 3600: 3310: 3303: 3272: 3232: 3007: 2985: 2922: 2841: 2797: 2724: 2659:-value (that is, 2565: 2531: 2296: ) = −sign( 2000: 1887: 1703: 1535: 1246: 1193:is obtained by, 839:regulis elchatayn 539: 7461: 7377:Graeffe's method 7306:Broyden's method 7255:Bisection method 7232: 7225: 7218: 7209: 7203: 7170: 7151: 7124: 7123: 7083: 7077: 7076: 7074: 7072: 7053: 7047: 7046: 7029:(164): 591–596. 7018: 7012: 7011: 6983: 6977: 6976: 6974: 6958: 6949: 6948: 6925: 6916: 6915: 6899: 6893: 6892: 6886:General Trattato 6882: 6876: 6875: 6869: 6861: 6859: 6858: 6852: 6846:. Archived from 6845: 6833: 6825: 6816: 6815: 6795: 6789: 6788: 6786: 6785: 6771: 6765: 6764: 6741: 6735: 6734: 6712: 6706: 6705: 6688: 6675: 6674: 6659: 6649: 6605: 6602: 6599: 6596: 6593: 6590: 6587: 6584: 6581: 6578: 6575: 6572: 6569: 6566: 6563: 6560: 6557: 6554: 6551: 6548: 6545: 6542: 6539: 6536: 6533: 6530: 6527: 6524: 6521: 6518: 6515: 6512: 6509: 6506: 6503: 6500: 6497: 6494: 6491: 6488: 6485: 6482: 6479: 6476: 6473: 6470: 6467: 6464: 6461: 6458: 6455: 6452: 6449: 6446: 6443: 6440: 6437: 6434: 6431: 6428: 6425: 6422: 6419: 6416: 6413: 6410: 6407: 6404: 6401: 6398: 6395: 6392: 6389: 6386: 6383: 6380: 6377: 6374: 6371: 6368: 6365: 6362: 6359: 6356: 6353: 6350: 6347: 6344: 6341: 6338: 6335: 6332: 6329: 6326: 6323: 6320: 6317: 6314: 6311: 6308: 6305: 6302: 6299: 6296: 6293: 6290: 6287: 6284: 6281: 6278: 6275: 6272: 6269: 6266: 6263: 6260: 6257: 6254: 6251: 6248: 6245: 6242: 6239: 6236: 6233: 6230: 6227: 6224: 6221: 6218: 6215: 6212: 6209: 6206: 6203: 6200: 6197: 6194: 6191: 6188: 6185: 6182: 6179: 6176: 6173: 6170: 6167: 6164: 6161: 6158: 6155: 6152: 6149: 6146: 6143: 6140: 6137: 6134: 6131: 6128: 6125: 6122: 6119: 6116: 6113: 6110: 6107: 6104: 6101: 6098: 6095: 6092: 6089: 6086: 6083: 6080: 6077: 6074: 6071: 6068: 6065: 6062: 6059: 6056: 6053: 6050: 6047: 6044: 6041: 6038: 6035: 6032: 6029: 6026: 6023: 6020: 6017: 6014: 6011: 6008: 6005: 6002: 5999: 5996: 5993: 5990: 5987: 5984: 5981: 5978: 5975: 5972: 5969: 5966: 5963: 5960: 5957: 5954: 5951: 5948: 5945: 5942: 5939: 5936: 5933: 5930: 5927: 5924: 5921: 5918: 5915: 5912: 5909: 5906: 5903: 5900: 5897: 5894: 5891: 5888: 5885: 5882: 5879: 5872: 5853: 5842: 5824: 5822: 5821: 5816: 5812: 5806: 5800: 5799: 5797: 5786: 5783: 5759: 5757: 5753: 5747: 5746: 5744: 5740: 5739: 5718: 5717: 5701: 5698: 5694: 5693: 5678: 5677: 5662: 5661: 5646: 5645: 5634: 5632: 5628: 5622: 5621: 5620: 5612: 5607: 5594:(the "excess"). 5593: 5589: 5587: 5586: 5581: 5577: 5558: 5557: 5540: 5532: 5530: 5529: 5524: 5520: 5513: 5512: 5501: 5492:(the "deficit"). 5491: 5487: 5485: 5484: 5479: 5475: 5456: 5455: 5438: 5430: 5428: 5427: 5422: 5418: 5411: 5410: 5399: 5388: 5386: 5385: 5380: 5376: 5369: 5368: 5356: 5354: 5353: 5341: 5292: 5282: 5280: 5279: 5274: 5270: 5234: 5219: 5217: 5216: 5211: 5207: 5200: 5199: 5187: 5185: 5182: 5170: 5168: 5167: 5166: 5149: 5146: 5144: 5139: 5138: 5128: 5117: 5085: 5076: 5074: 5073: 5068: 5066: 5062: 5061: 5059: 5058: 5046: 5027: 5023: 5021: 5020: 5011: 5001: 5000: 4999: 4978: 4969: 4956: 4944: 4942: 4941: 4929: 4920: 4909: 4877: 4862: 4858: 4856: 4855: 4850: 4846: 4831: 4813: 4805: 4803: 4802: 4797: 4790: 4772: 4760: 4758: 4757: 4752: 4749: 4748: 4726: 4721: 4682: 4680: 4679: 4674: 4671: 4669: 4668: 4650: 4641: 4636: 4595:geometric series 4592: 4588: 4580: 4576: 4554: 4552: 4550: 4549: 4544: 4539: 4531: 4526: 4518: 4499: 4497: 4495: 4494: 4489: 4484: 4476: 4444: 4442: 4441: 4438: 4435: 4401: 4395: 4362: 4360: 4359: 4354: 4349: 4348: 4345: 4321: 4319: 4318: 4313: 4311: 4307: 4306: 4301: 4300: 4296: 4280: 4279: 4270: 4262: 4257: 4246: 4241: 4240: 4233: 4232: 4220: 4219: 4215: 4183: 4182: 4166: 4164: 4163: 4158: 4156: 4155: 4140: 4139: 4135: 4119: 4118: 4115: 4097: 4095: 4094: 4089: 4084: 4079: 4078: 4066: 4065: 4061: 4048: 4040: 4039: 4038: 4037: 4027: 4012: 4007: 4006: 3976: 3974: 3973: 3968: 3963: 3962: 3950: 3949: 3945: 3929: 3926: 3909: 3907: 3906: 3901: 3890: 3889: 3877: 3876: 3856: 3854: 3853: 3848: 3846: 3844: 3815: 3780: 3775: 3774: 3757: 3755: 3754: 3749: 3747: 3742: 3731: 3726: 3725: 3721: 3696: 3694: 3693: 3688: 3686: 3685: 3682: 3669: 3667: 3666: 3661: 3631: 3629: 3628: 3623: 3618: 3613: 3602: 3593: 3583: 3581: 3580: 3575: 3563: 3561: 3560: 3555: 3535: 3534: 3518: 3516: 3515: 3510: 3499: 3491: 3490: 3478: 3477: 3459: 3458: 3454: 3434: 3432: 3431: 3426: 3424: 3420: 3396: 3395: 3365: 3364: 3332: 3330: 3329: 3324: 3322: 3318: 3317: 3311: 3308: 3304: 3296: 3281: 3273: 3270: 3266: 3233: 3231: 3227: 3226: 3210: 3206: 3205: 3189: 3174: 3153: 3147: 3141: 3139: 3138: 3135: 3132: 3125: 3106: 3102: 3086: 3075: 3051: 3049: 3048: 3045: 3042: 3035: 3021: 3019: 3018: 3013: 3008: 3006: 3002: 3001: 2986: 2978: 2970: 2969: 2953: 2952: 2951: 2939: 2938: 2923: 2915: 2910: 2909: 2897: 2896: 2880: 2875: 2874: 2852: 2850: 2849: 2844: 2842: 2840: 2836: 2835: 2814: 2813: 2798: 2790: 2787: 2786: 2785: 2773: 2772: 2754: 2753: 2741: 2740: 2725: 2717: 2714: 2709: 2708: 2689: 2673: 2658: 2654: 2591:Improvements in 2579: 2577: 2576: 2571: 2566: 2564: 2563: 2562: 2537: 2532: 2530: 2529: 2528: 2503: 2476: 2469: 2462: 2455: 2437: 2426: 2417: 2403: 2402: 2391: 2389: 2388: 2383: 2372: 2371: 2356: 2355: 2315: 2304: 2302: 2288:bisection method 2285: 2278:inflection point 2275: 2269: 2263: 2249: 2235: 2226: 2198: 2177: 2157:, otherwise set 2156: 2135: 2114: 2098: 2082: 2075: 2066: 2050: 2034: 2027: 2014: 2012: 2011: 2006: 2001: 1999: 1995: 1994: 1973: 1972: 1956: 1952: 1951: 1936: 1935: 1920: 1919: 1904: 1903: 1893: 1888: 1886: 1882: 1881: 1860: 1859: 1843: 1842: 1841: 1829: 1828: 1818: 1813: 1812: 1794: 1793: 1781: 1780: 1749: 1747: 1746: 1741: 1730: 1729: 1717: 1716: 1704: 1702: 1701: 1700: 1688: 1687: 1677: 1673: 1672: 1651: 1650: 1634: 1626: 1625: 1600: 1593: 1589: 1585: 1571: 1569: 1568: 1563: 1555: 1554: 1536: 1534: 1533: 1532: 1520: 1519: 1509: 1505: 1504: 1483: 1482: 1466: 1458: 1457: 1425:point-slope form 1422: 1412: 1386: 1360: 1338: 1324: 1308: 1284: 1277: 1270: 1260: 1258: 1257: 1252: 1247: 1242: 1241: 1240: 1228: 1227: 1217: 1212: 1211: 1192: 1185: 1176:bisection method 1155: 1144: 1133: 1122: 1118: 1113: 1109: 1098: 1086: 1080: 1058: 1035: 1017: 1007: 993: 979: 970: 957: 953: 950:of the function 941: 930: 926: 922: 918: 685: 672: 670: 669: 664: 615: 611: 607: 603: 599: 595: 591: 587: 583: 579: 575: 571: 553: 551: 550: 545: 540: 538: 537: 536: 524: 523: 513: 512: 511: 502: 501: 489: 488: 479: 478: 468: 439: 437: 436: 431: 426: 425: 410: 409: 390: 389: 374: 373: 345: 343: 342: 337: 289: 277: 272: 270: 269: 263: 260: 246: 235: 228: 221: 215: 206: 204: 203: 198: 171: 139: 132: 130: 128: 127: 124: 121: 112: 108: 106: 104: 103: 100: 97: 88: 81: 79: 77: 76: 73: 70: 7469: 7468: 7464: 7463: 7462: 7460: 7459: 7458: 7439: 7438: 7437: 7432: 7423:Muller's method 7401: 7348: 7344:Ridders' method 7325: 7292: 7288:Halley's method 7283:Newton's method 7269: 7241: 7236: 7173: 7167: 7154: 7148: 7135: 7132: 7130:Further reading 7127: 7104:10.1145/3423597 7098:(1): 5:1–5:24. 7085: 7084: 7080: 7070: 7068: 7055: 7054: 7050: 7035:10.2307/2007695 7020: 7019: 7015: 6985: 6984: 6980: 6960: 6959: 6952: 6945: 6927: 6926: 6919: 6901: 6900: 6896: 6884: 6883: 6879: 6862: 6856: 6854: 6850: 6843: 6841:"Archived copy" 6839: 6827: 6826: 6819: 6812: 6797: 6796: 6792: 6783: 6781: 6775:"Nine chapters" 6773: 6772: 6768: 6761: 6745:Needham, Joseph 6743: 6742: 6738: 6731: 6714: 6713: 6709: 6703: 6690: 6689: 6678: 6672: 6651: 6650: 6643: 6639: 6625:Ridders' method 6615: 6607: 6606: 6603: 6600: 6597: 6594: 6591: 6588: 6585: 6582: 6579: 6576: 6573: 6570: 6567: 6564: 6561: 6558: 6555: 6552: 6549: 6546: 6543: 6540: 6537: 6534: 6531: 6528: 6525: 6522: 6519: 6516: 6513: 6510: 6507: 6504: 6501: 6498: 6495: 6492: 6489: 6486: 6483: 6480: 6477: 6474: 6471: 6468: 6465: 6462: 6459: 6456: 6453: 6450: 6447: 6444: 6441: 6438: 6435: 6432: 6429: 6426: 6423: 6420: 6417: 6414: 6411: 6408: 6405: 6402: 6399: 6396: 6393: 6390: 6387: 6384: 6381: 6378: 6375: 6372: 6369: 6366: 6363: 6360: 6357: 6354: 6351: 6348: 6345: 6342: 6339: 6336: 6333: 6330: 6327: 6324: 6321: 6318: 6315: 6312: 6309: 6306: 6303: 6300: 6297: 6294: 6291: 6288: 6285: 6282: 6279: 6276: 6273: 6270: 6267: 6264: 6261: 6258: 6255: 6252: 6249: 6246: 6243: 6240: 6237: 6234: 6231: 6228: 6225: 6222: 6219: 6216: 6213: 6210: 6207: 6204: 6201: 6198: 6195: 6192: 6189: 6186: 6183: 6180: 6177: 6174: 6171: 6168: 6165: 6162: 6159: 6156: 6153: 6150: 6147: 6144: 6141: 6138: 6135: 6132: 6129: 6126: 6123: 6120: 6117: 6114: 6111: 6108: 6105: 6102: 6099: 6096: 6093: 6090: 6087: 6084: 6081: 6078: 6075: 6072: 6069: 6066: 6063: 6060: 6057: 6054: 6051: 6048: 6045: 6042: 6039: 6036: 6033: 6030: 6027: 6024: 6021: 6018: 6015: 6012: 6009: 6006: 6003: 6000: 5997: 5994: 5991: 5988: 5985: 5982: 5979: 5976: 5973: 5970: 5967: 5964: 5961: 5958: 5955: 5952: 5949: 5946: 5943: 5940: 5937: 5934: 5931: 5928: 5925: 5922: 5919: 5916: 5913: 5910: 5907: 5904: 5901: 5898: 5895: 5892: 5889: 5886: 5883: 5881:<stdio.h> 5880: 5877: 5855: 5844: 5838: 5831: 5787: 5758: 5731: 5709: 5702: 5685: 5669: 5653: 5637: 5633: 5602: 5601: 5591: 5549: 5535: 5534: 5504: 5496: 5495: 5493: 5489: 5447: 5433: 5432: 5402: 5394: 5393: 5360: 5345: 5287: 5286: 5229: 5228: 5191: 5169: 5158: 5145: 5130: 5080: 5079: 5050: 5038: 5034: 5002: 4979: 4957: 4951: 4933: 4872: 4871: 4863:and invoke the 4860: 4808: 4807: 4767: 4766: 4734: 4687: 4686: 4654: 4602: 4601: 4590: 4586: 4578: 4574: 4503: 4502: 4501: 4461: 4460: 4459: 4439: 4436: 4433: 4432: 4430: 4409: 4397: 4391: 4370: 4340: 4329: 4328: 4284: 4271: 4247: 4224: 4203: 4198: 4194: 4190: 4174: 4169: 4168: 4147: 4123: 4110: 4105: 4104: 4070: 4049: 4029: 4022: 3998: 3981: 3980: 3954: 3933: 3914: 3913: 3881: 3868: 3863: 3862: 3816: 3781: 3766: 3761: 3760: 3732: 3709: 3704: 3703: 3677: 3672: 3671: 3634: 3633: 3586: 3585: 3566: 3565: 3526: 3521: 3520: 3482: 3469: 3442: 3437: 3436: 3404: 3400: 3387: 3356: 3351: 3350: 3347: 3341: 3320: 3319: 3313: 3312: 3305: 3292: 3291: 3274: 3267: 3259: 3252: 3244: 3238: 3237: 3218: 3211: 3197: 3190: 3175: 3167: 3158: 3157: 3149: 3143: 3136: 3133: 3130: 3129: 3127: 3123: 3111: 3104: 3100: 3088: 3085: 3077: 3073: 3070: 3046: 3043: 3040: 3039: 3037: 3034: 3026: 2993: 2961: 2954: 2943: 2930: 2901: 2888: 2881: 2866: 2861: 2860: 2827: 2805: 2788: 2777: 2764: 2745: 2732: 2715: 2700: 2695: 2694: 2688: 2675: 2672: 2660: 2656: 2652: 2649: 2596: 2554: 2541: 2520: 2507: 2482: 2481: 2471: 2464: 2457: 2439: 2432: 2419: 2412: 2400: 2396: 2363: 2347: 2324: 2323: 2306: 2300: 2291: 2281: 2271: 2265: 2261: 2251: 2247: 2237: 2234: 2228: 2225: 2219: 2216: 2197: 2188: 2179: 2176: 2167: 2158: 2155: 2146: 2137: 2134: 2125: 2116: 2112: 2100: 2096: 2084: 2081: 2077: 2071: 2064: 2052: 2048: 2036: 2033: 2029: 2026: 2022: 1986: 1964: 1957: 1943: 1927: 1911: 1895: 1894: 1873: 1851: 1844: 1833: 1820: 1819: 1804: 1785: 1772: 1767: 1766: 1761: 1721: 1708: 1692: 1679: 1678: 1664: 1642: 1635: 1617: 1606: 1605: 1595: 1591: 1587: 1584: 1576: 1546: 1524: 1511: 1510: 1496: 1474: 1467: 1449: 1432: 1431: 1418: 1410: 1397: 1388: 1384: 1371: 1362: 1358: 1349: 1340: 1336: 1322: 1306: 1299: 1283: 1279: 1276: 1272: 1269: 1265: 1232: 1219: 1218: 1203: 1198: 1197: 1191: 1187: 1183: 1165:Newton's method 1146: 1135: 1124: 1120: 1116: 1111: 1100: 1096: 1093: 1082: 1078: 1069: 1060: 1056: 1045:Newton's method 1039:There are many 1033: 1026: 1019: 1013: 1012:, the function 1005: 995: 991: 981: 978: 972: 969: 963: 955: 951: 932: 928: 924: 920: 909: 887: 700: 686:it provides an 681: 628: 627: 621:linear function 617: 613: 612: 609: 608: 605: 604: 601: 600: 597: 596: 593: 592: 589: 588: 585: 584: 581: 580: 577: 576: 573: 572: 569: 563:Ground of Artes 528: 515: 514: 503: 493: 480: 470: 469: 456: 455: 417: 401: 381: 365: 354: 353: 295: 294: 285: 264: 261: 256: 255: 253: 248: 237: 230: 223: 217: 211: 177: 176: 167: 150: 134: 125: 122: 119: 118: 116: 114: 110: 101: 98: 95: 94: 92: 90: 83: 74: 71: 66: 65: 63: 58: 46:and the use of 39:trial and error 17: 12: 11: 5: 7467: 7465: 7457: 7456: 7451: 7441: 7440: 7434: 7433: 7431: 7430: 7425: 7420: 7415: 7409: 7407: 7403: 7402: 7400: 7399: 7394: 7389: 7384: 7379: 7374: 7369: 7364: 7358: 7356: 7350: 7349: 7347: 7346: 7341: 7339:Brent's method 7335: 7333: 7331:Hybrid methods 7327: 7326: 7324: 7323: 7318: 7313: 7308: 7302: 7300: 7294: 7293: 7291: 7290: 7285: 7279: 7277: 7271: 7270: 7268: 7267: 7262: 7257: 7251: 7249: 7243: 7242: 7237: 7235: 7234: 7227: 7220: 7212: 7206: 7205: 7171: 7165: 7152: 7146: 7131: 7128: 7126: 7125: 7078: 7048: 7013: 6994:(2): 168–174. 6978: 6972:10.1.1.53.8676 6950: 6944:978-0486428079 6943: 6917: 6894: 6877: 6817: 6810: 6790: 6766: 6759: 6736: 6729: 6707: 6701: 6676: 6670: 6640: 6638: 6635: 6634: 6633: 6631:Brent's method 6628: 6622: 6614: 6611: 5887:<math.h> 5876: 5830: 5827: 5826: 5825: 5811: 5805: 5796: 5793: 5790: 5782: 5779: 5776: 5773: 5770: 5767: 5764: 5752: 5743: 5738: 5734: 5730: 5727: 5724: 5721: 5716: 5712: 5708: 5705: 5697: 5692: 5688: 5684: 5681: 5676: 5672: 5668: 5665: 5660: 5656: 5652: 5649: 5644: 5640: 5627: 5618: 5615: 5576: 5573: 5570: 5567: 5564: 5561: 5556: 5552: 5548: 5545: 5519: 5516: 5511: 5507: 5474: 5471: 5468: 5465: 5462: 5459: 5454: 5450: 5446: 5443: 5417: 5414: 5409: 5405: 5390: 5389: 5375: 5372: 5367: 5363: 5359: 5352: 5348: 5344: 5339: 5336: 5333: 5330: 5327: 5324: 5321: 5318: 5315: 5312: 5309: 5306: 5303: 5300: 5297: 5269: 5266: 5263: 5260: 5257: 5254: 5251: 5248: 5245: 5242: 5239: 5221: 5220: 5206: 5203: 5198: 5194: 5190: 5181: 5178: 5175: 5165: 5161: 5157: 5154: 5142: 5137: 5133: 5127: 5124: 5121: 5116: 5113: 5110: 5106: 5102: 5099: 5096: 5093: 5090: 5077: 5065: 5057: 5053: 5049: 5044: 5041: 5037: 5033: 5030: 5026: 5017: 5014: 5008: 5005: 4998: 4995: 4992: 4989: 4986: 4982: 4975: 4972: 4966: 4963: 4960: 4954: 4950: 4947: 4940: 4936: 4932: 4927: 4924: 4919: 4916: 4913: 4908: 4905: 4902: 4898: 4894: 4891: 4888: 4885: 4882: 4845: 4842: 4839: 4836: 4830: 4827: 4824: 4821: 4818: 4795: 4789: 4786: 4783: 4780: 4777: 4763: 4762: 4747: 4744: 4741: 4737: 4733: 4730: 4725: 4720: 4717: 4714: 4710: 4706: 4703: 4700: 4697: 4694: 4684: 4667: 4664: 4661: 4657: 4653: 4648: 4645: 4640: 4635: 4632: 4629: 4625: 4621: 4618: 4615: 4612: 4609: 4566: 4565: 4562: 4542: 4537: 4534: 4529: 4524: 4521: 4516: 4513: 4510: 4500:the height is 4487: 4482: 4479: 4474: 4471: 4468: 4456: 4455: 4451:Find the time 4449: 4446: 4408: 4405: 4369: 4366: 4352: 4343: 4339: 4336: 4325: 4324: 4310: 4305: 4299: 4295: 4291: 4287: 4283: 4278: 4274: 4269: 4265: 4260: 4256: 4253: 4250: 4244: 4239: 4236: 4231: 4227: 4223: 4218: 4214: 4210: 4206: 4201: 4197: 4193: 4189: 4186: 4181: 4177: 4154: 4150: 4146: 4143: 4138: 4134: 4130: 4126: 4122: 4113: 4100: 4087: 4083: 4077: 4073: 4069: 4064: 4060: 4056: 4052: 4047: 4043: 4036: 4032: 4026: 4021: 4018: 4015: 4011: 4005: 4001: 3997: 3994: 3991: 3988: 3966: 3961: 3957: 3953: 3948: 3944: 3940: 3936: 3932: 3924: 3921: 3899: 3896: 3893: 3888: 3884: 3880: 3875: 3871: 3858: 3843: 3840: 3837: 3834: 3831: 3828: 3825: 3822: 3819: 3814: 3811: 3808: 3805: 3802: 3799: 3796: 3793: 3790: 3787: 3784: 3778: 3773: 3769: 3745: 3741: 3738: 3735: 3729: 3724: 3720: 3716: 3712: 3680: 3659: 3656: 3653: 3650: 3647: 3644: 3641: 3621: 3616: 3611: 3608: 3605: 3599: 3596: 3573: 3553: 3550: 3547: 3544: 3541: 3538: 3533: 3529: 3508: 3505: 3502: 3498: 3494: 3489: 3485: 3481: 3476: 3472: 3468: 3465: 3462: 3457: 3453: 3449: 3445: 3423: 3419: 3416: 3413: 3410: 3407: 3403: 3399: 3394: 3390: 3386: 3383: 3380: 3377: 3374: 3371: 3368: 3363: 3359: 3343:Main article: 3340: 3337: 3316: 3306: 3302: 3299: 3294: 3293: 3290: 3287: 3284: 3280: 3277: 3268: 3265: 3262: 3258: 3257: 3255: 3250: 3247: 3245: 3243: 3240: 3239: 3236: 3230: 3225: 3221: 3217: 3214: 3209: 3204: 3200: 3196: 3193: 3187: 3184: 3181: 3178: 3176: 3173: 3170: 3166: 3165: 3119: 3096: 3081: 3069: 3066: 3060:is called the 3030: 3023: 3022: 3011: 3005: 3000: 2996: 2992: 2989: 2984: 2981: 2976: 2973: 2968: 2964: 2960: 2957: 2950: 2946: 2942: 2937: 2933: 2929: 2926: 2921: 2918: 2913: 2908: 2904: 2900: 2895: 2891: 2887: 2884: 2878: 2873: 2869: 2854: 2853: 2839: 2834: 2830: 2826: 2823: 2820: 2817: 2812: 2808: 2804: 2801: 2796: 2793: 2784: 2780: 2776: 2771: 2767: 2763: 2760: 2757: 2752: 2748: 2744: 2739: 2735: 2731: 2728: 2723: 2720: 2712: 2707: 2703: 2683: 2668: 2648: 2645: 2634:Regula falsi's 2616:regula falsi's 2595: 2589: 2581: 2580: 2569: 2561: 2557: 2553: 2550: 2547: 2544: 2540: 2535: 2527: 2523: 2519: 2516: 2513: 2510: 2506: 2501: 2498: 2495: 2492: 2489: 2468: (0) = 5 2393: 2392: 2381: 2378: 2375: 2370: 2366: 2362: 2359: 2354: 2350: 2346: 2343: 2340: 2337: 2334: 2331: 2259: 2245: 2232: 2223: 2215: 2212: 2206:The fact that 2193: 2183: 2172: 2162: 2151: 2141: 2130: 2120: 2108: 2092: 2079: 2060: 2044: 2031: 2024: 2016: 2015: 2004: 1998: 1993: 1989: 1985: 1982: 1979: 1976: 1971: 1967: 1963: 1960: 1955: 1950: 1946: 1942: 1939: 1934: 1930: 1926: 1923: 1918: 1914: 1910: 1907: 1902: 1898: 1891: 1885: 1880: 1876: 1872: 1869: 1866: 1863: 1858: 1854: 1850: 1847: 1840: 1836: 1832: 1827: 1823: 1816: 1811: 1807: 1803: 1800: 1797: 1792: 1788: 1784: 1779: 1775: 1757: 1751: 1750: 1739: 1736: 1733: 1728: 1724: 1720: 1715: 1711: 1707: 1699: 1695: 1691: 1686: 1682: 1676: 1671: 1667: 1663: 1660: 1657: 1654: 1649: 1645: 1641: 1638: 1632: 1629: 1624: 1620: 1616: 1613: 1580: 1573: 1572: 1561: 1558: 1553: 1549: 1545: 1542: 1539: 1531: 1527: 1523: 1518: 1514: 1508: 1503: 1499: 1495: 1492: 1489: 1486: 1481: 1477: 1473: 1470: 1464: 1461: 1456: 1452: 1448: 1445: 1442: 1439: 1406: 1393: 1380: 1367: 1354: 1345: 1298: 1291: 1281: 1274: 1267: 1262: 1261: 1250: 1245: 1239: 1235: 1231: 1226: 1222: 1215: 1210: 1206: 1189: 1092: 1089: 1074: 1065: 1031: 1024: 1003: 989: 976: 967: 942:, is called a 886: 883: 853:used the term 810:Ibn al-Yasamin 774:Qusta ibn Luqa 756:mathematician 723:late antiquity 699: 696: 674: 673: 662: 659: 656: 653: 650: 647: 644: 641: 638: 635: 619:For an affine 567: 565:(c. 1542) is: 559:Robert Recorde 555: 554: 543: 535: 531: 527: 522: 518: 510: 506: 500: 496: 492: 487: 483: 477: 473: 466: 463: 441: 440: 429: 424: 420: 416: 413: 408: 404: 400: 397: 393: 388: 384: 380: 377: 372: 368: 364: 361: 347: 346: 335: 332: 329: 326: 323: 320: 317: 314: 311: 308: 305: 302: 208: 207: 196: 193: 190: 187: 184: 149: 146: 15: 13: 10: 9: 6: 4: 3: 2: 7466: 7455: 7452: 7450: 7447: 7446: 7444: 7429: 7426: 7424: 7421: 7419: 7416: 7414: 7411: 7410: 7408: 7406:Other methods 7404: 7398: 7395: 7393: 7390: 7388: 7385: 7383: 7380: 7378: 7375: 7373: 7370: 7368: 7365: 7363: 7362:Aberth method 7360: 7359: 7357: 7355: 7351: 7345: 7342: 7340: 7337: 7336: 7334: 7332: 7328: 7322: 7319: 7317: 7314: 7312: 7311:Secant method 7309: 7307: 7304: 7303: 7301: 7299: 7295: 7289: 7286: 7284: 7281: 7280: 7278: 7276: 7272: 7266: 7263: 7261: 7258: 7256: 7253: 7252: 7250: 7248: 7244: 7240: 7233: 7228: 7226: 7221: 7219: 7214: 7213: 7210: 7201: 7197: 7193: 7189: 7185: 7181: 7177: 7172: 7168: 7166:0-387-40737-5 7162: 7158: 7153: 7149: 7147:0-534-38216-9 7143: 7139: 7134: 7133: 7129: 7121: 7117: 7113: 7109: 7105: 7101: 7097: 7093: 7089: 7082: 7079: 7067: 7063: 7059: 7052: 7049: 7044: 7040: 7036: 7032: 7028: 7024: 7017: 7014: 7009: 7005: 7001: 6997: 6993: 6989: 6982: 6979: 6973: 6968: 6964: 6957: 6955: 6951: 6946: 6940: 6936: 6935: 6930: 6924: 6922: 6918: 6913: 6909: 6905: 6898: 6895: 6891: 6887: 6881: 6878: 6873: 6867: 6853:on 2014-05-16 6849: 6842: 6837: 6831: 6824: 6822: 6818: 6813: 6807: 6803: 6802: 6794: 6791: 6780: 6776: 6770: 6767: 6762: 6756: 6752: 6751: 6746: 6740: 6737: 6732: 6726: 6722: 6718: 6711: 6708: 6704: 6698: 6694: 6687: 6685: 6683: 6681: 6677: 6673: 6667: 6663: 6658: 6657: 6648: 6646: 6642: 6636: 6632: 6629: 6626: 6623: 6620: 6617: 6616: 6612: 6610: 5874: 5870: 5866: 5862: 5858: 5852: 5848: 5841: 5836: 5828: 5809: 5803: 5794: 5791: 5788: 5780: 5777: 5774: 5771: 5768: 5765: 5762: 5750: 5736: 5732: 5725: 5722: 5714: 5710: 5703: 5690: 5686: 5679: 5674: 5670: 5666: 5658: 5654: 5647: 5642: 5638: 5625: 5613: 5600: 5599: 5598: 5595: 5590:which equals 5571: 5565: 5562: 5554: 5550: 5543: 5517: 5514: 5509: 5505: 5488:which equals 5469: 5463: 5460: 5452: 5448: 5441: 5415: 5412: 5407: 5403: 5373: 5370: 5365: 5361: 5357: 5350: 5346: 5342: 5337: 5331: 5325: 5322: 5316: 5310: 5307: 5301: 5295: 5285: 5284: 5283: 5261: 5255: 5252: 5246: 5240: 5226: 5204: 5201: 5196: 5192: 5188: 5179: 5176: 5173: 5163: 5159: 5155: 5152: 5140: 5135: 5131: 5125: 5122: 5119: 5114: 5111: 5108: 5104: 5100: 5094: 5088: 5078: 5063: 5055: 5051: 5047: 5042: 5039: 5035: 5031: 5028: 5024: 5015: 5012: 5006: 5003: 4996: 4993: 4990: 4987: 4984: 4973: 4970: 4961: 4958: 4952: 4948: 4945: 4938: 4934: 4930: 4925: 4922: 4917: 4914: 4911: 4906: 4903: 4900: 4896: 4892: 4886: 4880: 4870: 4869: 4868: 4866: 4840: 4834: 4828: 4822: 4816: 4793: 4787: 4784: 4781: 4778: 4775: 4745: 4742: 4739: 4735: 4731: 4728: 4723: 4718: 4715: 4712: 4708: 4704: 4698: 4692: 4685: 4665: 4662: 4659: 4655: 4651: 4646: 4643: 4638: 4633: 4630: 4627: 4623: 4619: 4613: 4607: 4600: 4599: 4598: 4596: 4571: 4563: 4560: 4559: 4558: 4557:Explanation: 4555: 4535: 4532: 4527: 4522: 4519: 4514: 4511: 4480: 4477: 4472: 4469: 4453: 4450: 4447: 4428: 4424: 4423: 4422: 4418: 4416: 4415: 4406: 4404: 4400: 4394: 4388: 4386: 4381: 4378: 4374: 4367: 4365: 4341: 4334: 4323: 4308: 4297: 4293: 4289: 4285: 4281: 4276: 4272: 4263: 4258: 4254: 4251: 4248: 4242: 4237: 4234: 4229: 4225: 4221: 4216: 4212: 4208: 4204: 4199: 4195: 4191: 4184: 4179: 4175: 4152: 4148: 4144: 4141: 4136: 4132: 4128: 4124: 4120: 4111: 4101: 4098: 4075: 4071: 4067: 4062: 4058: 4054: 4050: 4041: 4034: 4030: 4019: 4016: 4013: 4003: 3999: 3989: 3986: 3977: 3959: 3955: 3951: 3946: 3942: 3938: 3934: 3922: 3919: 3910: 3897: 3894: 3891: 3886: 3882: 3878: 3873: 3869: 3859: 3838: 3832: 3829: 3823: 3817: 3809: 3803: 3800: 3797: 3791: 3785: 3782: 3776: 3771: 3767: 3758: 3743: 3739: 3736: 3733: 3727: 3722: 3718: 3714: 3710: 3700: 3699: 3698: 3678: 3657: 3654: 3651: 3648: 3645: 3642: 3639: 3614: 3609: 3606: 3597: 3594: 3571: 3545: 3542: 3536: 3531: 3527: 3503: 3500: 3496: 3487: 3483: 3479: 3474: 3470: 3460: 3455: 3451: 3447: 3443: 3421: 3417: 3414: 3411: 3408: 3405: 3401: 3397: 3392: 3388: 3384: 3375: 3372: 3366: 3361: 3357: 3346: 3338: 3336: 3333: 3300: 3297: 3288: 3285: 3282: 3278: 3275: 3263: 3260: 3253: 3248: 3246: 3241: 3234: 3223: 3219: 3212: 3202: 3198: 3191: 3185: 3182: 3179: 3177: 3171: 3168: 3155: 3152: 3146: 3122: 3118: 3114: 3108: 3099: 3095: 3091: 3084: 3080: 3067: 3065: 3063: 3059: 3054: 3033: 3029: 3009: 2998: 2994: 2987: 2982: 2979: 2974: 2966: 2962: 2955: 2948: 2944: 2935: 2931: 2924: 2919: 2916: 2911: 2906: 2902: 2893: 2889: 2882: 2876: 2871: 2867: 2859: 2858: 2857: 2832: 2828: 2821: 2818: 2810: 2806: 2799: 2794: 2791: 2782: 2778: 2769: 2765: 2758: 2755: 2750: 2746: 2737: 2733: 2726: 2721: 2718: 2710: 2705: 2701: 2693: 2692: 2691: 2686: 2682: 2678: 2671: 2667: 2663: 2646: 2644: 2642: 2640: 2635: 2631: 2629: 2624: 2619: 2618:convergence. 2617: 2613: 2609: 2605: 2601: 2594: 2590: 2588: 2586: 2567: 2559: 2551: 2548: 2545: 2538: 2533: 2525: 2517: 2514: 2511: 2504: 2499: 2493: 2487: 2480: 2479: 2478: 2474: 2467: 2460: 2454: 2450: 2446: 2442: 2435: 2430: 2429:sign function 2425: 2424: 2415: 2409: 2407: 2399: 2379: 2376: 2373: 2368: 2364: 2360: 2357: 2352: 2348: 2344: 2341: 2335: 2329: 2322: 2321: 2320: 2317: 2313: 2309: 2299: 2295: 2289: 2284: 2279: 2274: 2268: 2258: 2254: 2244: 2240: 2231: 2222: 2213: 2211: 2209: 2204: 2200: 2196: 2192: 2186: 2182: 2175: 2171: 2165: 2161: 2154: 2150: 2144: 2140: 2133: 2129: 2123: 2119: 2111: 2107: 2103: 2095: 2091: 2087: 2076:, the number 2074: 2068: 2063: 2059: 2055: 2047: 2043: 2039: 2019: 2002: 1991: 1987: 1980: 1977: 1969: 1965: 1958: 1948: 1944: 1937: 1932: 1928: 1924: 1916: 1912: 1905: 1900: 1896: 1889: 1878: 1874: 1867: 1864: 1856: 1852: 1845: 1838: 1834: 1830: 1825: 1821: 1809: 1805: 1798: 1795: 1790: 1786: 1782: 1777: 1773: 1765: 1764: 1763: 1760: 1756: 1737: 1734: 1726: 1722: 1718: 1713: 1709: 1697: 1693: 1689: 1684: 1680: 1669: 1665: 1658: 1655: 1647: 1643: 1636: 1630: 1622: 1618: 1611: 1604: 1603: 1602: 1598: 1583: 1579: 1559: 1551: 1547: 1543: 1540: 1529: 1525: 1521: 1516: 1512: 1501: 1497: 1490: 1487: 1479: 1475: 1468: 1462: 1454: 1450: 1443: 1440: 1437: 1430: 1429: 1428: 1426: 1421: 1416: 1409: 1405: 1401: 1396: 1392: 1383: 1379: 1375: 1370: 1366: 1357: 1353: 1348: 1344: 1333: 1330: 1326: 1319: 1314: 1303: 1296: 1292: 1290: 1286: 1248: 1243: 1237: 1233: 1229: 1224: 1220: 1213: 1208: 1204: 1196: 1195: 1194: 1181: 1177: 1172: 1170: 1169:secant method 1166: 1160: 1157: 1153: 1149: 1142: 1138: 1131: 1127: 1107: 1103: 1090: 1088: 1085: 1077: 1073: 1068: 1064: 1054: 1050: 1046: 1042: 1037: 1030: 1023: 1016: 1011: 1002: 998: 988: 984: 975: 966: 961: 949: 945: 939: 935: 916: 912: 906: 904: 898: 896: 892: 884: 881: 876: 873: 871: 866: 862: 861: 856: 852: 848: 844: 840: 836: 835: 830: 825: 823: 819: 815: 811: 807: 803: 799: 795: 791: 787: 783: 779: 775: 771: 767: 763: 759: 755: 749: 744: 742: 741:conic section 738: 734: 733: 728: 724: 719: 717: 714:from ancient 713: 709: 705: 697: 695: 693: 689: 688:approximation 684: 679: 660: 657: 654: 651: 648: 645: 639: 633: 626: 625: 624: 622: 616: 566: 564: 560: 541: 533: 529: 525: 520: 516: 508: 504: 498: 494: 490: 485: 481: 475: 471: 464: 461: 454: 453: 452: 450: 446: 427: 422: 418: 414: 406: 402: 395: 391: 386: 382: 378: 370: 366: 359: 352: 351: 350: 333: 330: 327: 324: 321: 318: 315: 312: 306: 300: 293: 292: 291: 288: 283: 279: 275: 267: 259: 251: 244: 240: 233: 226: 220: 214: 194: 191: 188: 185: 182: 175: 174: 173: 170: 165: 161: 159: 155: 147: 145: 141: 137: 86: 69: 61: 56: 55:Rhind papyrus 51: 49: 45: 40: 36: 32: 28: 27: 22: 7298:Quasi-Newton 7260:Regula falsi 7259: 7186:(3–4): 3–4. 7183: 7179: 7156: 7137: 7095: 7091: 7081: 7069:. Retrieved 7065: 7061: 7051: 7026: 7022: 7016: 6991: 6987: 6981: 6962: 6933: 6903: 6897: 6889: 6885: 6880: 6855:. Retrieved 6848:the original 6829: 6800: 6793: 6782:. Retrieved 6778: 6769: 6749: 6739: 6720: 6710: 6692: 6655: 6608: 6544:"%0.15f 5868: 5864: 5860: 5856: 5850: 5846: 5839: 5832: 5829:Example code 5596: 5533:and compute 5431:and compute 5391: 5225:regula falsi 5224: 5222: 4859:in terms of 4764: 4584: 4556: 4457: 4452: 4420: 4413: 4410: 4398: 4392: 4389: 4385:regula falsi 4384: 4382: 4379: 4375: 4371: 4326: 4102: 3979: 3912: 3860: 3701: 3348: 3334: 3156: 3150: 3144: 3120: 3116: 3112: 3109: 3097: 3093: 3089: 3082: 3078: 3071: 3061: 3058:regula falsi 3057: 3055: 3031: 3027: 3024: 2855: 2684: 2680: 2676: 2669: 2665: 2661: 2650: 2643: 2639:regula falsi 2638: 2633: 2632: 2627: 2623:regula falsi 2622: 2621:But, though 2620: 2615: 2611: 2607: 2604:regula falsi 2603: 2600:regula falsi 2599: 2597: 2593:regula falsi 2592: 2582: 2472: 2465: 2458: 2452: 2448: 2444: 2440: 2433: 2422: 2413: 2410: 2397: 2394: 2318: 2311: 2307: 2297: 2293: 2282: 2272: 2266: 2256: 2252: 2242: 2238: 2229: 2220: 2217: 2208:regula falsi 2207: 2205: 2201: 2194: 2190: 2184: 2180: 2173: 2169: 2163: 2159: 2152: 2148: 2142: 2138: 2131: 2127: 2121: 2117: 2109: 2105: 2101: 2093: 2089: 2085: 2072: 2069: 2061: 2057: 2053: 2045: 2041: 2037: 2020: 2017: 1758: 1754: 1752: 1596: 1581: 1577: 1574: 1419: 1407: 1403: 1399: 1394: 1390: 1381: 1377: 1373: 1368: 1364: 1355: 1351: 1346: 1342: 1334: 1329:line segment 1318:regula falsi 1317: 1315: 1312: 1295:regula falsi 1294: 1287: 1263: 1173: 1161: 1158: 1151: 1147: 1140: 1136: 1129: 1125: 1105: 1101: 1094: 1083: 1075: 1071: 1066: 1062: 1052: 1038: 1028: 1021: 1014: 1000: 996: 986: 982: 973: 964: 947: 943: 937: 933: 914: 910: 907: 903:regula falsi 902: 899: 888: 878: 874: 870:Regula Falsi 869: 858: 857:in his book 854: 843:al-khaṭāʾayn 842: 838: 832: 826: 818:Ibn al-Banna 797: 765: 761: 751: 746: 737:secant lines 730: 729:text called 720: 701: 682: 675: 618: 568: 562: 556: 442: 348: 286: 281: 280: 273: 265: 257: 249: 242: 238: 231: 224: 218: 212: 209: 168: 163: 162: 157: 153: 151: 142: 135: 84: 67: 59: 52: 34: 30: 26:regula falsi 25: 24: 18: 7275:Householder 7071:9 September 6556:FalsiMethod 5965:FalsiMethod 4865:sum formula 1575:Now choose 1271:is between 880:excellence. 834:Liber Abaci 772:is that of 770:Middle East 21:mathematics 7443:Categories 7265:ITP method 6912:1088854304 6857:2012-06-08 6784:2019-02-16 6637:References 6619:ITP method 3345:ITP method 3339:ITP method 3309:otherwise. 1594:for which 1586:to be the 1325:-intercept 1049:derivative 980:such that 927:. A value 841:after the 451:given by, 290:such that 172:such that 7200:229538951 7120:230586635 7112:0098-3500 6975:, CSM-257 6967:CiteSeerX 5804:≈ 5778:× 5766:× 5723:− 5667:− 5617:^ 5371:− 5323:− 5253:− 5223:Now, use 5202:− 5177:− 5156:− 5123:− 5105:∑ 5043:− 5007:− 4988:− 4962:− 4926:⋅ 4915:− 4897:∑ 4785:− 4761:Club-rush 4743:− 4732:⋅ 4709:∑ 4663:− 4647:⋅ 4624:∑ 4282:− 4252:− 4243:− 4235:− 4196:ϵ 4185:≡ 4176:ρ 4149:ρ 4145:σ 4142:− 4121:≡ 4068:− 4031:κ 4017:− 4000:κ 3990:≡ 3987:δ 3952:− 3923:≡ 3920:σ 3898:δ 3895:σ 3879:≡ 3830:− 3798:− 3777:≡ 3728:≡ 3572:ϕ 3549:∞ 3537:∈ 3507:⌉ 3504:ϵ 3480:− 3464:⌈ 3461:≡ 3418:ϕ 3398:∈ 3389:κ 3379:∞ 3367:∈ 3358:κ 3186:− 2975:− 2912:− 2819:− 2756:− 2515:− 2408:of 2/3). 2358:− 1978:− 1925:− 1865:− 1831:− 1796:− 1719:− 1690:− 1656:− 1544:− 1522:− 1488:− 1441:− 865:Tartaglia 855:el cataym 829:Fibonacci 814:al-Hassar 806:mnemonics 758:Abu Kamil 710:, and in 704:cuneiform 692:iteration 680:function 678:nonlinear 526:− 491:− 449:algorithm 48:equations 7008:50473598 6866:cite web 6747:(1959). 6613:See also 5884:#include 5878:#include 5863:) = cos( 5859: ( 4458:Answer: 3279:′ 3271:if  3264:′ 3172:′ 3148:, where 3115: ( 3092: ( 2679: ( 2664: ( 2447:) = abs( 2443: ( 2310: ( 2255: ( 2241: ( 2214:Analysis 2104: ( 2088: ( 2056: ( 2040: ( 1402: ( 1376: ( 1180:midpoint 1150: ( 1139: ( 1128: ( 1104: ( 999: ( 985: ( 936: ( 919:, where 913: ( 824:origin. 822:Moroccan 754:Egyptian 7043:2007695 4683:Bulrush 4443:⁠ 4431:⁠ 4427:bulrush 4099: ; 3911:where 3857: ; 3140:⁠ 3128:⁠ 3050:⁠ 3038:⁠ 2612:diverge 2598:Though 2463:and by 2427:or the 1762:gives: 1327:of the 1167:or the 851:Pacioli 786:Lebanon 782:Baalbek 698:History 561:in his 271:⁠ 254:⁠ 129:⁠ 117:⁠ 105:⁠ 93:⁠ 78:⁠ 64:⁠ 44:algebra 7198:  7163:  7144:  7118:  7110:  7041:  7006:  6969:  6941:  6910:  6808:  6757:  6727:  6699:  6668:  6595:return 6550:" 6538:printf 6508:return 6091:double 6070:double 6031:double 6010:double 6001:double 5992:double 5986:double 5971:double 5962:double 5911:return 5899:double 5890:double 5843:where 5813:  5810:2.4615 5807:  5801:  5784:  5760:  5754:  5748:  5699:  5635:  5629:  5623:  5608:  5578:  5541:  5521:  5502:  5476:  5439:  5419:  5400:  5377:  5293:  5271:  5235:  5208:  5183:  5171:  5150:  5147:  5086:  4878:  4847:  4832:  4814:  4791:  4773:  4553:units. 4167:where 3759:and 3564:where 3349:Given 1415:secant 712:papyri 23:, the 7196:S2CID 7116:S2CID 7039:JSTOR 7004:S2CID 6851:(PDF) 6844:(PDF) 6583:5E-15 6562:& 6496:break 6256:break 5867:) -- 4498:days; 2456:when 2292:sign( 1423:. In 1154:) = 0 958:is a 940:) = 0 917:) = 0 739:on a 241:′ = 115:12 + 33:, or 7161:ISBN 7142:ISBN 7108:ISSN 7073:2016 6939:ISBN 6908:OCLC 6872:link 6838:and 6806:ISBN 6755:ISBN 6725:ISBN 6697:ISBN 6666:ISBN 6529:void 6523:main 6487:else 6469:side 6442:side 6397:> 6379:else 6364:side 6340:side 6295:> 6238:fabs 6229:< 6211:fabs 6133:< 6055:side 5849:) = 5845:cos( 5789:1.75 5769:1.75 5592:1.75 5494:Set 5490:−1.5 5392:Set 3978:and 3927:sign 3658:2... 3519:and 3283:> 2583:The 2477:in 2475:= ±1 2451:) − 2418:for 2250:and 2227:and 2178:and 2136:and 2099:and 2051:and 2028:and 1387:and 1316:The 1293:The 1278:and 994:and 971:and 948:zero 944:root 847:Arab 816:and 778:Arab 216:and 156:and 138:= 12 131:= 15 91:4 + 80:= 15 7188:doi 7100:doi 7031:doi 6996:doi 6988:BIT 6592:)); 6589:100 6520:int 6112:for 6046:int 6019:int 5914:cos 5871:= 0 5795:1.5 5781:1.5 4536:130 4346:ITP 4188:min 4116:ITP 3993:min 3683:ITP 3126:by 2856:or 2687:− 1 2608:all 2461:≠ 0 2436:= 0 2416:= 0 2187:+ 1 2166:+ 1 2145:+ 1 2124:+ 1 1599:= 0 1350:, 946:or 252:= 210:if 107:= 5 87:= 4 19:In 7445:: 7194:. 7182:. 7178:. 7114:. 7106:. 7096:47 7094:. 7090:. 7064:. 7060:. 7037:. 7027:41 7025:. 7002:. 6992:11 6990:. 6953:^ 6920:^ 6868:}} 6864:{{ 6820:^ 6777:. 6719:. 6679:^ 6664:, 6662:15 6644:^ 6547:\n 6460:/= 6457:fb 6445:== 6436:if 6430:fc 6424:fa 6394:fc 6388:fa 6382:if 6370:-1 6355:/= 6352:fa 6346:-1 6343:== 6334:if 6328:fc 6322:fb 6292:fb 6286:fc 6280:if 6277:); 6262:fc 6253:)) 6205:if 6202:); 6199:fb 6193:fa 6175:fb 6163:fa 6145:++ 6109:); 6094:fb 6088:); 6073:fa 6040:fc 5989:), 5983:)( 5959:*/ 5873:. 5308::= 4867:. 4597:. 4523:10 4481:13 4434:1 4425:A 3435:, 3105:= 2421:1/ 2189:= 2168:= 2147:= 2126:= 1738:0. 1411:)) 1398:, 1385:)) 1372:, 1171:. 1087:. 1070:, 1036:. 1027:, 784:, 718:. 694:. 623:, 278:. 239:ax 160:. 140:. 120:12 62:+ 50:. 29:, 7231:e 7224:t 7217:v 7202:. 7190:: 7184:5 7169:. 7150:. 7122:. 7102:: 7075:. 7066:1 7045:. 7033:: 7010:. 6998:: 6947:. 6914:. 6874:) 6860:. 6814:. 6787:. 6763:. 6733:. 6604:} 6601:; 6598:0 6586:, 6580:, 6577:1 6574:, 6571:0 6568:, 6565:f 6559:( 6553:, 6541:( 6535:{ 6532:) 6526:( 6517:} 6514:; 6511:c 6505:} 6502:} 6499:; 6490:{ 6484:} 6481:; 6478:1 6475:+ 6472:= 6466:; 6463:2 6454:) 6451:1 6448:+ 6439:( 6433:; 6427:= 6421:; 6418:c 6415:= 6412:a 6406:{ 6403:) 6400:0 6391:* 6385:( 6376:} 6373:; 6367:= 6361:; 6358:2 6349:) 6337:( 6331:; 6325:= 6319:; 6316:c 6313:= 6310:b 6304:{ 6301:) 6298:0 6289:* 6283:( 6274:c 6271:( 6268:f 6265:= 6259:; 6250:a 6247:+ 6244:b 6241:( 6235:* 6232:e 6226:) 6223:a 6220:- 6217:b 6214:( 6208:( 6196:- 6190:( 6187:/ 6184:) 6181:a 6178:* 6172:- 6169:b 6166:* 6160:( 6157:= 6154:c 6151:{ 6148:) 6142:n 6139:; 6136:m 6130:n 6127:; 6124:0 6121:= 6118:n 6115:( 6106:b 6103:( 6100:f 6097:= 6085:a 6082:( 6079:f 6076:= 6064:; 6061:0 6058:= 6052:, 6049:n 6043:; 6037:, 6034:c 6028:{ 6025:) 6022:m 6016:, 6013:e 6007:, 6004:b 5998:, 5995:a 5980:f 5977:* 5974:( 5968:( 5947:} 5944:; 5941:x 5938:* 5935:x 5932:* 5929:x 5926:- 5923:) 5920:x 5917:( 5908:{ 5905:) 5902:x 5896:( 5893:f 5869:x 5865:x 5861:x 5857:f 5851:x 5847:x 5840:x 5792:+ 5775:3 5772:+ 5763:2 5751:= 5742:) 5737:1 5733:x 5729:( 5726:F 5720:) 5715:2 5711:x 5707:( 5704:F 5696:) 5691:1 5687:x 5683:( 5680:F 5675:2 5671:x 5664:) 5659:2 5655:x 5651:( 5648:F 5643:1 5639:x 5626:= 5614:x 5575:) 5572:3 5569:( 5566:F 5563:= 5560:) 5555:2 5551:x 5547:( 5544:F 5518:3 5515:= 5510:2 5506:x 5473:) 5470:2 5467:( 5464:F 5461:= 5458:) 5453:1 5449:x 5445:( 5442:F 5416:2 5413:= 5408:1 5404:x 5374:7 5366:n 5362:2 5358:+ 5351:n 5347:2 5343:6 5338:= 5335:) 5332:n 5329:( 5326:B 5320:) 5317:n 5314:( 5311:C 5305:) 5302:n 5299:( 5296:F 5268:) 5265:) 5262:n 5259:( 5256:B 5250:) 5247:n 5244:( 5241:C 5238:( 5205:1 5197:n 5193:2 5189:= 5180:2 5174:1 5164:n 5160:2 5153:1 5141:= 5136:k 5132:2 5126:1 5120:n 5115:0 5112:= 5109:k 5101:= 5098:) 5095:n 5092:( 5089:C 5064:) 5056:n 5052:2 5048:1 5040:1 5036:( 5032:6 5029:= 5025:) 5016:2 5013:1 5004:1 4997:1 4994:+ 4991:1 4985:n 4981:) 4974:2 4971:1 4965:( 4959:1 4953:( 4949:3 4946:= 4939:k 4935:2 4931:1 4923:3 4918:1 4912:n 4907:0 4904:= 4901:k 4893:= 4890:) 4887:n 4884:( 4881:B 4861:k 4844:) 4841:n 4838:( 4835:C 4829:, 4826:) 4823:n 4820:( 4817:B 4794:. 4788:1 4782:i 4779:= 4776:k 4746:1 4740:i 4736:2 4729:1 4724:n 4719:1 4716:= 4713:i 4705:= 4702:) 4699:n 4696:( 4693:C 4666:1 4660:i 4656:2 4652:1 4644:3 4639:n 4634:1 4631:= 4628:i 4620:= 4617:) 4614:n 4611:( 4608:B 4591:n 4589:( 4587:n 4579:K 4575:F 4541:) 4533:6 4528:+ 4520:8 4515:+ 4512:4 4509:( 4486:) 4478:6 4473:+ 4470:2 4467:( 4440:2 4437:/ 4399:x 4393:y 4351:) 4342:x 4338:( 4335:f 4322:. 4309:} 4304:| 4298:2 4294:/ 4290:1 4286:x 4277:t 4273:x 4268:| 4264:, 4259:2 4255:a 4249:b 4238:j 4230:0 4226:n 4222:+ 4217:2 4213:/ 4209:1 4205:n 4200:2 4192:{ 4180:k 4153:k 4137:2 4133:/ 4129:1 4125:x 4112:x 4086:} 4082:| 4076:f 4072:x 4063:2 4059:/ 4055:1 4051:x 4046:| 4042:, 4035:2 4025:| 4020:a 4014:b 4010:| 4004:1 3996:{ 3965:) 3960:f 3956:x 3947:2 3943:/ 3939:1 3935:x 3931:( 3892:+ 3887:f 3883:x 3874:t 3870:x 3842:) 3839:b 3836:( 3833:f 3827:) 3824:a 3821:( 3818:f 3813:) 3810:b 3807:( 3804:f 3801:a 3795:) 3792:a 3789:( 3786:f 3783:b 3772:f 3768:x 3744:2 3740:b 3737:+ 3734:a 3723:2 3719:/ 3715:1 3711:x 3679:x 3655:, 3652:1 3649:, 3646:0 3643:= 3640:j 3620:) 3615:5 3610:+ 3607:1 3604:( 3598:2 3595:1 3552:) 3546:, 3543:0 3540:[ 3532:0 3528:n 3501:2 3497:/ 3493:) 3488:0 3484:a 3475:0 3471:b 3467:( 3456:2 3452:/ 3448:1 3444:n 3422:) 3415:+ 3412:1 3409:, 3406:1 3402:[ 3393:2 3385:, 3382:) 3376:, 3373:0 3370:( 3362:1 3301:2 3298:1 3289:, 3286:0 3276:m 3261:m 3254:{ 3249:= 3242:m 3235:, 3229:) 3224:k 3220:b 3216:( 3213:f 3208:) 3203:k 3199:c 3195:( 3192:f 3183:1 3180:= 3169:m 3151:m 3145:m 3137:2 3134:/ 3131:1 3124:) 3121:k 3117:a 3113:f 3101:) 3098:k 3094:b 3090:f 3083:k 3079:c 3074:k 3047:2 3044:/ 3041:1 3032:k 3028:c 3010:, 3004:) 2999:k 2995:a 2991:( 2988:f 2983:2 2980:1 2972:) 2967:k 2963:b 2959:( 2956:f 2949:k 2945:b 2941:) 2936:k 2932:a 2928:( 2925:f 2920:2 2917:1 2907:k 2903:a 2899:) 2894:k 2890:b 2886:( 2883:f 2877:= 2872:k 2868:c 2838:) 2833:k 2829:a 2825:( 2822:f 2816:) 2811:k 2807:b 2803:( 2800:f 2795:2 2792:1 2783:k 2779:b 2775:) 2770:k 2766:a 2762:( 2759:f 2751:k 2747:a 2743:) 2738:k 2734:b 2730:( 2727:f 2722:2 2719:1 2711:= 2706:k 2702:c 2685:k 2681:c 2677:f 2670:k 2666:c 2662:f 2657:y 2653:y 2568:. 2560:2 2556:) 2552:1 2549:+ 2546:x 2543:( 2539:1 2534:+ 2526:2 2522:) 2518:1 2512:x 2509:( 2505:1 2500:= 2497:) 2494:x 2491:( 2488:f 2473:x 2466:f 2459:x 2453:x 2449:x 2445:x 2441:f 2434:x 2423:x 2414:x 2401:" 2398:f 2380:x 2377:3 2374:+ 2369:2 2365:x 2361:4 2353:3 2349:x 2345:2 2342:= 2339:) 2336:x 2333:( 2330:f 2314:) 2312:x 2308:f 2303:) 2301:" 2298:f 2294:f 2283:f 2273:f 2267:f 2262:) 2260:0 2257:b 2253:f 2248:) 2246:0 2243:a 2239:f 2233:0 2230:b 2224:0 2221:a 2195:k 2191:c 2185:k 2181:b 2174:k 2170:a 2164:k 2160:a 2153:k 2149:b 2143:k 2139:b 2132:k 2128:c 2122:k 2118:a 2113:) 2110:k 2106:c 2102:f 2097:) 2094:k 2090:a 2086:f 2080:k 2078:c 2073:k 2065:) 2062:k 2058:a 2054:f 2049:) 2046:k 2042:b 2038:f 2032:k 2030:b 2025:k 2023:a 2003:. 1997:) 1992:k 1988:a 1984:( 1981:f 1975:) 1970:k 1966:b 1962:( 1959:f 1954:) 1949:k 1945:a 1941:( 1938:f 1933:k 1929:b 1922:) 1917:k 1913:b 1909:( 1906:f 1901:k 1897:a 1890:= 1884:) 1879:k 1875:a 1871:( 1868:f 1862:) 1857:k 1853:b 1849:( 1846:f 1839:k 1835:a 1826:k 1822:b 1815:) 1810:k 1806:b 1802:( 1799:f 1791:k 1787:b 1783:= 1778:k 1774:c 1759:k 1755:c 1735:= 1732:) 1727:k 1723:b 1714:k 1710:c 1706:( 1698:k 1694:a 1685:k 1681:b 1675:) 1670:k 1666:a 1662:( 1659:f 1653:) 1648:k 1644:b 1640:( 1637:f 1631:+ 1628:) 1623:k 1619:b 1615:( 1612:f 1597:y 1592:x 1588:x 1582:k 1578:c 1560:. 1557:) 1552:k 1548:b 1541:x 1538:( 1530:k 1526:a 1517:k 1513:b 1507:) 1502:k 1498:a 1494:( 1491:f 1485:) 1480:k 1476:b 1472:( 1469:f 1463:= 1460:) 1455:k 1451:b 1447:( 1444:f 1438:y 1420:f 1408:k 1404:b 1400:f 1395:k 1391:b 1389:( 1382:k 1378:a 1374:f 1369:k 1365:a 1363:( 1359:) 1356:k 1352:b 1347:k 1343:a 1341:( 1337:k 1323:x 1307:f 1282:k 1280:b 1275:k 1273:a 1268:k 1266:c 1249:. 1244:2 1238:k 1234:b 1230:+ 1225:k 1221:a 1214:= 1209:k 1205:c 1190:k 1188:c 1184:k 1152:c 1148:f 1143:) 1141:c 1137:f 1132:) 1130:x 1126:f 1121:c 1117:c 1112:f 1108:) 1106:x 1102:f 1097:x 1084:f 1079:) 1076:k 1072:b 1067:k 1063:a 1061:( 1057:k 1034:) 1032:0 1029:b 1025:0 1022:a 1020:( 1015:f 1006:) 1004:0 1001:b 997:f 992:) 990:0 987:a 983:f 977:0 974:b 968:0 965:a 956:f 952:f 938:c 934:f 929:c 925:x 921:f 915:x 911:f 764:( 683:f 661:, 658:c 655:+ 652:x 649:a 646:= 643:) 640:x 637:( 634:f 542:, 534:2 530:b 521:1 517:b 509:1 505:x 499:2 495:b 486:2 482:x 476:1 472:b 465:= 462:x 428:. 423:2 419:b 415:= 412:) 407:2 403:x 399:( 396:f 392:, 387:1 383:b 379:= 376:) 371:1 367:x 363:( 360:f 334:, 331:0 328:= 325:c 322:+ 319:x 316:a 313:= 310:) 307:x 304:( 301:f 287:x 276:′ 274:x 268:′ 266:b 262:/ 258:b 250:x 245:′ 243:b 234:′ 232:b 227:′ 225:x 219:b 213:a 195:, 192:b 189:= 186:x 183:a 169:x 136:x 126:4 123:/ 111:x 102:4 99:/ 96:4 85:x 75:4 72:/ 68:x 60:x

Index

mathematics
trial and error
algebra
equations
Rhind papyrus
linear interpolation
algorithm
Robert Recorde
linear function
nonlinear
approximation
iteration
cuneiform
Babylonian mathematics
papyri
Egyptian mathematics
late antiquity
Chinese mathematical
The Nine Chapters on the Mathematical Art
secant lines
conic section
Egyptian
Abu Kamil
Middle East
Qusta ibn Luqa
Arab
Baalbek
Lebanon
Euclidean-style geometric proof
medieval Muslim mathematics

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