(50g) Simpson's rule for f(x,y)

[peacecalc]

Hello Valentin,

I second your statement:

Quote:Anyway, Simpson's rule is suboptimal for integration purposes, either one-dimensional or multi-dimensional. There are much better methods providing either significantly increased accuracy for the same number of function evaluations or the same accuracy with fewer evaluations.

But as I wrote with double integrals the build-in solution for the hp 50g is slower then the brute force simpson rule.