I created an anonymous function for ‘z’, that illustrates what you need to do to plot your function.
This works:
x=linspace(0,1,6);
y=linspace(0,1,6);
[X Y]=meshgrid(x,y);
z = @(x,y) x.*exp(-y)+exp(-x);
mesh(x,y,z(X,Y))
You need to use the meshgrid-created ‘X’ and ‘Y’ matrices to calculate ‘z’. You also need to use element-wise multiplication. See the documentation on Array vs. Matrix Operations for element-wise operations, and on Anonymous Functions for them.
You may also need to use the ‘X’ and ‘Y’ matrices in your mesh call. In recent MATLAB releases you can use the vectors. The alternative is:
mesh(X,Y,z(X,Y))
