convert vector to matrix

Hi all, I would like to convert a vector

A = [1,2,3,4,5,6]
to 
matrix like that:

B=
[1 2 3,
4 5 6]

I tried to use reshape and I don't have vec2mat function. Do you have an idea? thank you

Answer 1

[Star Strider]

Try this:

A = [1,2,3,4,5,6];
B = reshape(A(:), 3, []).'

B =
     1     2     3
     4     5     6