User talk:SphEditor

The method described in this article has significant differences from the algorithm presented in Brent's original text. Brent's original method as uses a combination of linear interpolation, quadratic interpolation, and bisection.

Perhaps the algorithm presented is a later modification by Brent, but if so the reference should be stated and if not credit to authors of the modification should be cited. Can someone point me to a primary reference for the algorithm presented here which used quadratic interpolation, secant, and bisection? I am implementing a root finder and I am interested in the algorithm and suspect it may outperform Brent's original method in some or many cases.

Also, the text references Jack Crenshaw incorrectly according to the reference provided. I read the reference and it says he uses parabolic interpolation while the text says he uses quadratic interpolation. This is a factual error that should be corrected.