Re: [Jprogramming] Derivatives

[Roger Hui]

For polynomial roots, see
https://www.jsoftware.com/help/dictionary/samp27.htm for an alternative,
Kerner's Method.  It finds all the roots (approximations thereof,
of course) all at once.  Also described in Section 3.2 of Iverson's Turing
Lecture https://www.jsoftware.com/papers/tot.htm.
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