MathGroup Archive 2001

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RootSearch package on MathSource

  • To: mathgroup at
  • Subject: [mg31216] RootSearch package on MathSource
  • From: "Ersek, Ted R" <ErsekTR at>
  • Date: Fri, 19 Oct 2001 03:12:07 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

Last week I got a very nice package posted on MathSource.  The package
defines a function called RootSearch which tries to find all roots of an
equation between (xmin, xmax).  The function is very robust.  
For now RootSearch can only solve a single equation in a single variable. I
have thought about extending it to  multiple dimensions or for finding
complex roots, and I might do so during the next few years.  A robust
algorithm for such problems would be more complicated, and I would have to
learn about the methods that are most effective in those cases.
    Ted Ersek

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