How to Add a row vector to a column vector like matrix multiplication

Question

I have a nx1 vector and a 1xn vector. I want to add them in a special manner like matrix multiplication in an efficient manner (vectorized):

Example:

Answer 1

You can use bsxfun:

A=[1 2 3]'

B=[4 5 6]

bsxfun(@plus, A, B)

The result is

ans =

     5     6     7
     6     7     8
     7     8     9