MATLAB: Delete rows from matrix

delete rows

Let's say we have matrix A=[1 2 3; 4 5 6; 7 8 9; 10 11 12], and b a number the user is inserting.
I want to delete 1st row if b=1, or delete the 2nd row if b=2 etc. Is this possible?

Best Answer

A=[ 1 2 3;...
4 5 6;...
7 8 9;...
10 11 12]
b=2;
A(b,:)=[]