RROOT_748
Algorithm 748: Enclosing zeros of continuous functions Two efficient algorithms for enclosing a zero of a continuous function are presented. They are similar to the recent methods, but together with quadratic interpolation they make essential use of inverse cubic interpolation as well. Since asymptotically the inverse cubic interpolation is always chosen by the algorithms, they achieve higher-efficiency indices: 1.6529… for the first algorithm, and 1.6686… for the second one. It is proved that the second algorithm is optimal in a certain family. Numerical experiments show that the two new methods compare well with recent methods, as well as with the efficient solvers of Dekker, Brent, Bus and Dekker, and Le. The second method from the present article has the best behavior of all 12 methods especially when the termination tolerance is small.
(Source: http://dl.acm.org/)
This software is also peer reviewed by journal TOMS.
This software is also peer reviewed by journal TOMS.
Keywords for this software
References in zbMATH (referenced in 10 articles , 1 standard article )
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- Alefeld, G. E.; Potra, F. A.; Shi, Y.: Algorithm 748: Enclosing zeros of continuous functions (1995)
- Alefeld, G. E.; Potra, F. A.; Shi, Yixun: Algorithm 748; enclosing zeros of continuous functions (1995)