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Re: Re: Performance improvement needed - Help.

• To: mathgroup at smc.vnet.net
• Subject: [mg63694] Re: [mg63678] Re: Performance improvement needed - Help.
• From: Pratik Desai <pdesai1 at umbc.edu>
• Date: Tue, 10 Jan 2006 01:48:49 -0500 (EST)
• References: <dpiotv$l11$1@smc.vnet.net><dplhod$ela$1@smc.vnet.net> <200601090949.EAA29728@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

Tonybony wrote:

>Dear Paul,
>Yes I am computing some numerical integral, on a dicrete cartesian
>grid. Actualy I am calculating an electric field describe in terms of
>vectorial spherical harmonics,
>
Probably not related but have you tried the in built mathematica package 
Calculus`VectorAnalysis`
I think it has functionality to switch between different coordinate 
systems ans such

Pratik

> and for each multipole (n,m) I need to
>do a numeric Integral. I do not know with stomic or molecular integral
>you are refering top since this is not my field, but I am interested in
>how to spped up the computation of integrals over hydrogenic orbitals.
>They might be similar. Could you please foward me some reference on
>this matter?
>
>Thank you,
>Antonio Neves
>
>  
>

• References:
  • Re: Performance improvement needed - Help.
    • From: "Tonybony" <aneves@gmail.com>