How to do MATLAB code for wave equation for a rectangular membrane 3D

plot in MATLAB a time lapse of the wave profile of time increments of choice.

This plot will be 3D:

Consider the wave equation for a rectangular membrane with the given c, L, K, f (x, y) and g(x, y). 1. C = 1, L = K = 2 pi, f(x, y) = x^2 sin(y); g (x, y) = 0