Raising a scalar to each element in a matrix

I have tried to raise e to the power of each element of a matrix for a contour plot of e^(1/X)/Y and got the error message for non-finite ZData. I was wondering whether the operation has done a form of matrix multiplication and added multiple elements results instead of outputting e^(ij) for element ij.

Thanks

x = linspace(0,50);
y = linspace(0,50);
[X,Y] = meshgrid(x,y);
Z = expm(X.^(-1))*(Y.^(-1));

contour(X,Y,Z);

Warning: Contour not rendered for non-finite ZData

Answer 1

[Torsten]

expm is incorrect, use exp.

And you shouldn't divide by 0 - not for X and not for Y.

x = linspace(1,50);
y = linspace(1,50);
[X,Y] = meshgrid(x,y);
Z = exp(1./(X.*Y));
contour(X,Y,Z)