How to get a contour plot from the combination of "for loop" and "matrix operation"?

How to get a contour plot of say z = matrix_a * matrix_b?

Here matrix_a = f(x,y), matrix_b = f(x,y) and f(x,y) may be a complex function.

Possible approach may look like this:

Loop1: x = variable

Loop2: y = variable

matrix_a = f(x,y)

matrix_b = f(x,y)

Result: z = matrix_a * matrix_b

contourf(x, y, real(z))

or

contourf(x, y, imag(z))

Answer 1

[madhan ravi]

[X, Y] = meshgrid(x, y);
Z = X .* Y;
contourf(X, Y, Z)

[Nasir Mehmood]

Thanks for a quick response dear Madhan Ravi.

However, the problem I encountered is different. I do not need a point-wise multiplication. Instead I need to multiply two matrices (matrix operation) which'll produce a single number (in case of a 1-by-n and n-by-1 matrix multiplication). Therefore I need to have multiple matrices (varying with x and y) and getting a set of values of z to be plotted.

[madhan ravi]

.* with *