Multiply mx1 matrix to mxn matrix

I have two matrices A and B, A is 4000x1 and B is 4000*5662. How do multiply each row in A (only 1 column) to corresponding row in B (for all 5662 columns). I have tried several ways, but not getting the correct answers or receiving error message "Error using * Inner matrix dimensions must agree".

Answer 1

[the cyclist]

% Make up some data
A = rand(4000,1);
B = rand(4000,5662);

C = A.*B; % If you have a recent enough version of MATLAB (R2016b or later)
C = bsxfun(@times,A,B); % If you have an older version

[Ivy Chen]

thanks!