creating a matrix using integers and other matrices

so let's say that I have two 1x3 matrices, a & b, and I want to create another matrix, c, where c is [1,2,a;3,4,b], such that c is a 2x5 matrix, how can I do that?

Answer 1

[James Tursa]

Exactly what you have already written:

c = [1,2,a;3,4,b];

What am I missing?

[Alexandria Ragsdale]

I'm sorry, I just had to transpose a & b. Thank you for taking the time to answer my dumb question