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Re: Time for an integration
On 6/16/09 at 9:51 PM, boo_00_07 at hotmail.com (Lena) wrote: >I have an integral to perform 4096 times: it is a 3dimensionnal >integral over a matrix of 4096.4096 points. >It takes many hours and I still does not have the result. I made a >loop with NIntegrate. >Is it possible that an integration loop in mathematica takes so long >? Yes. It is not at all difficult to create integrals with a single dimension take a long time to compute. And certainly even a relatively simple integrand will take longer with more dimensions. >Is there any ways to improve it ? Quite possibly it can be improved. But there is no way to offer specific suggestions or even know if this is the case without details of the integral being computed.