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Topic: Speeding Computations w/ NIntegrate[]
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Paul McDowell

Posts: 1
Registered: 12/11/04
Speeding Computations w/ NIntegrate[]
Posted: Nov 7, 1996 12:40 AM
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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

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