In Response To 'Re: Numerical integration over an arbitrary 2D ...'
thanks for your answer.
You are right, for complex domain i mean a domain (in R^2) that i cannot parametrize.
On the other hand, i know the formulas of my functions f(x,y).
Unfortunatly your link doesn't work. However, i think that the very better way to face this problem is to use a triangular mesh of the domain.
I can generate a list of the triangles by means of an external mesher tool. The fact is that I don't know how to import this list in mathetamica.
Can you help my? Thanks again,