How to add each column of matrix A with another matrix B?

Suppose is a column vector and is a matrix, then , a matrix.

Now, I have matrix , each is a column vector. I would like to add each column in A, starting from the first column , with matrix B and store the result matrix C. The resulting matrix C now has dimension and looks like this

How should I do it in Matlab?

Thanks !

Answer 1

[the cyclist]

I think this does what you want:

% Input data
A = [1 20;
     3 40];
B = [5 6 7;
     8 9 10];

% Algorithm:
% (1) Permute A, transforming it from MxN matrix to Mx1xN.
% (2) Add it to B, using implicit expansion so that all columns are added.
% (3) Reshape so that slices in 3rd dimension are now side-by-side instead.
C = reshape(permute(A,[1 3 2]) + B, size(B,1),[])

C = 2×6

6 7 8 25 26 27 11 12 13 48 49 50

[Hung Dao]

Thanks.