How can I generate an integral of some 2-d functions?

For example, there is a function for variables, x,y.

The range of x,y are [0,500], respectively.

The function is just random and It is over 0.

How can I generate the integral of the function?

[John D'Errico]

help trapz
help integral2
help int

[Anirudh Singh]

You can use function integral2 for 2-d integral here.

Example:

f = @(y, x) x.^2 + x.*sin(y).^2; % suppose this is our function
integral2(f, xmin, xmax, ymin, ymax);

For more detail you can refer the documentation link of function: https://in.mathworks.com/help/matlab/ref/integral2.html