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MathGroup Archive 1996

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Speeding Computations w/ NIntegrate[]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg5183] Speeding Computations w/ NIntegrate[]
  • From: pdmcd at magicnet.net (Paul McDowell)
  • Date: Sat, 9 Nov 1996 02:23:58 -0500
  • Organization: MagicNet, Inc.
  • Sender: owner-wri-mathgroup at wolfram.com

Fellow Mathematica Hackers,

relatively complicated integrands.  The integrands contain confluent
hypergeometric functions, incomplete gamma functions and the like.
I load the packages into a notebook, and then set up a do loop to 
evaluate the integrals several times ( on the order of 200 ).  

v2.2.  I quit all other applications and execute a evaluate entire
notebook.  My problem:  it is taking 12 hours for some of these integrals
to evaluate.

and there was no increase in speed.  I am a student, and therefore the
support I get from Wolfram is limited.  What can you expect when you 
pay less than full price....

note, I am setting MinRecursion->3, MaxRecursion->11 in the options to
NIntegrate[].  Thanks for any help.


Paul McDowell
the dangerous one



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