Matlab delete row or col to delete the row or column of the matrix

In Matlab, we sometimes need to delete a row or a column in the matrix, which can be deleted by the following methods:

a = [
1 2 3
4 5 6
7 8 9];

a(2,:) = []; % Delete row 2
a(:,2) = []; % Delete col 2

ProgrammerAH