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MathGroup Archive 1992

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Re: time consumption FindRoot

  • To: mathgroup at yoda.physics.unc.edu
  • Subject: Re: time consumption FindRoot
  • From: keiper
  • Date: Wed, 2 Dec 92 10:21:59 CST

Ted van der Togt, Delft, the Netherlands writes:

   > I tried to find the root of a certain function (repeatedly, with
   > different arguments) and wondered what was taking Mma so long.
   > After I traced the part where it was going wrong, I figured out
   > that FindRoot took more time, each time it was called! Even for
   > the same arguments! Has anyone an idea why?, and how I might avoid this?

There is a bug in the pseudo-compiler.  If you use the option Compiled -> False
the timing should remain constant.

Jerry B. Keiper
keiper at wri.com





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