MATLAB: How to eliminate column of the matrix

Question

Hello everyone!

I have generated some matrix of size say mxn. I want to eliminate the columns which have all values equal to "0".

For example:

A=[ 1 2 3 ... 2 0
    2 3 5 ... 3 0
    3 5 6 ... 3 0]

Desired output

A=[1 2 3 ... 2
   2 3 5 ... 3
   3 5 6 ... 3]

Answer 1

A(:,all(A==0)) = []