How to Create a 5x5 matrix whose rows are (1:5)?

Create a 5x5 matrix whose rows are (1:5).

Answer 1

[Star Strider]

You can do that with simple vector multiplication:

A = ones(5, 1) * (1:5);

Answer 2

[KL]

A = repmat(1:5,5,1);

or in general,

N = 5;
A = repmat(1:N,N,1)