Re: 4D Integral with changeable limits

Andrei,

TF1::IntegralMultiple should work for dimension N=4 (in principle up to N=15).
Could you send the shortest possible running example showing your problem?

Rene Brun

andreyk1_at_post.tau.ac.il wrote:
> Dear Roottalk,
>
> I need to calculate a non trivial task: 4D integral where the limits
> of integration are variables of integration. Namely, the integral
> is:
>
> Integral = int_0^1(int_z^1(int_y^1(int_x^1 F(w,x,y,z) dw) dx) dy) dz
>
> For 3D integration it is possible to perform the calculation, but here I
> tried to use a class 'IntegralMultiple' with N=4, and I've got a
> problem with defining limits of each integration. Actually, it is
> possible to write a recursive function with 1D integration, but it
> is not efficient.
>
> Is there any effective solution to this problem?
>
> Thanks!
>
>
>
Received on Sun May 06 2007 - 10:10:00 CEST