An algorithm with guaranteed convergence for finding a zero of a function

5. R. P. Brent, An algorithm with guaranteed convergence for finding a zero of a function, Computer Journal 14 (1971), 422-425. MR 49#4234.

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Paper: pdf (1388K).

Abstract

An algorithm is presented for finding a zero of a function which changes sign in a given interval. The algorithm combines linear interpolation and inverse quadratic interpolation with bisection. Convergence is usually superlinear, and is never much slower than for bisection. ALGOL 60 procedures are given.

Comments

The algorithm is also described in Chapter 4 of Algorithms for Minimization without Derivatives, Prentice-Hall, Englewood Cliffs, New Jersey, 1973.

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