How do you compare two matrices?

Hi,

I have two 3D matrices of ones (and zeros) of a (filled) cone like shape. The matrices are the same size, but the cone sizes differ. I want to "subtract" the smaller of the two matrices from the other matrix element by element. resulting in a third matrix of the "leftover" ones (and zeros). A-B = C doesn't seem to work. Does anybody have an idea on how two do that?

[KSSV]

Two matrices should be same to subtract. Get them to same size. As your matrices are filled with 0 and 1.

[David van Nederpelt]

Hi KSSV,

Thanks for your answer. The sizes were the same. But I found a mistake in the buildup of the cones. Thank you anyway! Do you happen to know how to 3D plot a matrix of ones determined by their position in the matrix?

Kind regards,

David