Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Software » comp.soft-sys.math.mathematica

Topic: Speeding Computations w/ NIntegrate[]
Replies: 0  

Advanced Search

Back to Topic List Back to Topic List  
Paul McDowell

Posts: 1
Registered: 12/11/04
Speeding Computations w/ NIntegrate[]
Posted: Nov 7, 1996 12:40 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Fellow Mathematica Hackers,

I have developed several packages that use NIntegrate[] on
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 ).

I have a P5 133MHz machine running Windows 95 and Mathematica
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.

I have read about the Compile[] function. I tried using that,
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....

Are there any suggestions for speeding these integrals? One more
note, I am setting MinRecursion->3, MaxRecursion->11 in the options to
NIntegrate[]. Thanks for any help.


Paul McDowell
the dangerous one








Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.