MATLAB: How i can remove row and column from matrix

Question

how i can remove row and column from matrix

ex: A=[1,2,3;4,5,6;7,8,9;10,11,12]

i need to remove second row and second column from the above matrix

 A =[
     1   3                  
     7   9
    10   12]

Answer 1

A = A([1, 3:end), [1, 3:end]);

or

A(2,:) = [];
A(:,2) = [];

You cannot use the [] delete operator on both rows and columns at the same time.