This is the actual problem. Thank you for your time.
"Bruno Luong" <firstname.lastname@example.org> wrote in message <email@example.com>... > "hanciong" wrote in message <firstname.lastname@example.org>... > > But then what should I do if I want to integrate this interpolation function? The quad2d or integral2 or whatever make input of x and y arbitrarily; I can't force them to expand x input or y input to have same size. > > But who force you to use anonymous function? Use in regular function, put interp2 followed by an appropriate reshape. > > It is also not so smart to integrate an interpolation on grid by brute-force numerically integration. One can obtain the result directly from the grid values, if you are willing to make a little work beforehand. Or or lazier way of using summing Gauss point would be more economic. > > Bruno