MATLAB: How can i replace a matrix number with 0

replace matrix zero

A=[-1,1,1;0,-1,0;0,0,-1;1,0,0];
I chose A(1,3) and A(3,3) which is including 1 and -1
And how can i replace them zero

Best Answer

A(1,3) = 0;
A(3,3) = 0;