remove the zeros in the Matrix

How can I remove the zeros from matrix A ??

Answer 1

[Adam Danz]

Here's how to remove rows or columns that contain only 0s

data = [0 0 0 0; 0 4 5 2; 0 2 5 4; 0 2 4 1]

data = 4×4

0 0 0 0 0 4 5 2 0 2 5 4 0 2 4 1

rowsAll0 = all(data==0,1);  % columns of 0s
data(:, rowsAll0) = [];
colsAll0 = all(data==0,2);  % rows of 0s
data(colsAll0, :) = []

data = 3×3

4 5 2 2 5 4 2 4 1