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MathGroup Archive 2005

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Re: NIntegrate

  • To: mathgroup at smc.vnet.net
  • Subject: [mg57723] Re: [mg57699] NIntegrate
  • From: "John Roberts" <jlr-d at jlr-d.cnc.net>
  • Date: Mon, 6 Jun 2005 04:21:32 -0400 (EDT)
  • References: <200506050817.EAA29361@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Daniel,

My understanding is (I'm definitely not a Mahematica guru) that Mathematica 
automatically does the biggest thing that can be done to speed up 
NIntegrate-- when you run NIntegrate, Mathematica automatically compiles the 
function to be integrated so that it will run as fast as possible. If there 
are any other tricks for making NIntegrate run faster, I would also like to 
know what they are.

By the way, if you have not yet upgraded,  I have found that Mathematica 5.1 
performs NIntegrate at least three times faster than Mathematica 4.1 did on 
the functions that I have been integrating, which involve double integrals 
of fairly large functions.

John
----- Original Message ----- 
From: "Daniel Arnold" <flashlight at student.unibe.ch>
To: mathgroup at smc.vnet.net
Subject: [mg57723] [mg57699] NIntegrate


> Hi
>
> What should I do first in order to accelerate a numerical integration?
> Can you give me some hints?
>
> Greets, Daniel
>
>
>
>
> -- 
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  • References:
    • NIntegrate
      • From: Daniel Arnold <flashlight@student.unibe.ch>
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