adding every element of an array with every element of another array?

dear all, i want to add array elements to every other element of another element of another array in simulink/matlab

Answer 1

[Andrei Bobrov]

Pranav wrote: "...i want to add elemnts of A to be added to every other elemnet of B. ie. 1+[5 6 7 8],2+[5 6 7 8],...so on..."

A = [ 1 2 3 4];
B = [ 5 6 7 8];

C = reshape(bsxfun(@plus,A,B.'),1,[]);

Answer 2

[Vishal Rane]

Do you need to do this in MATLAB code ?

A = [ 1 2 3 4]
B = [ 5 6 7 8]
C = A + B = [ 6 8 10 12 ]

Comment back if your requirement is different.

[Pranav]

Thanks but sorry.i want to add elemnts of A to be added to every other elemnet of B. ie. 1+[5 6 7 8],2+[5 6 7 8],...so on

[Vishal Rane]

arrayfun(@(x)(x+A),B,'Un',0)

will work in that case but output will be a 1x4 cell arrray.

[Pranav]

Thanks Vushal i will check for other array sizes.

Answer 3

[Matt Fig]

A = 0:4;
B = 10:16;
bsxfun(@plus,A,B')

[Pranav]

Thanks u Matt fot the solution. I shall convert it into a row vector.

Answer 4

[Brandon]

I found this conversation while looking for a faster way to accomplish this task. The code below also works but is just slightly slower in my code on my machine.

 X=[A' ones(size(A'))]; 
 Y=[ones(size(B)); B]; 
 reshape(X*Y,1,[])