How to create a matrix by inserting a vector into another matrix?

Hello,

Let's say I have matrix A, and matrix B. Matrix A is a 5x5, and Matrix B is a 5x1. I would like to take all of matrix B and insert it into the first column of matrix A, replacing those values in matrix A BUT making a completely new matrix, D, leaving A and B unchanged.

Answer 1

[David Young]

D = A;
D(:,1) = B;

or

D = [B A(:, 2:end)];

[Ryan]

Thank you for the quick response!