calculating each elements of matrixs

Hi all I am a highschool student studying matlab

What i want is to prgramming C matrix if matrix A (nx2), matrix B (nx2)

C(1,:)=A(1,:)-B(1,:)
C(2,:)=A(2,:)-B(1,:)
C(3,:)=A(3,:)-B(1,:)
C(4,:)=A(4,:)-B(1,:)
             :
             :
C(n,:)=A(n,:)-B(1,:)
C(n+1,:)=A(n,:)-B(2,:)
C(n+2,:)=A(n,:)-B(2,:)
C(n+3,:)=A(n,:)-B(2,:)
C(N+4,:)=A(n,:)-B(2,:)
             :
             :
C(n*n,:)=A(n,:)-B(n,:)

I ve tried like

I=1;
J=1;
K=1;
C(I,:) = A(J,:)-B(K,:);
for J = J+1
    K = K+1
    I = I+1
end

But failed, I hope some of you might help me

[James Tursa]

Cross-posted on newsgroup. Looks like the last A(n,:) part is a repeated typo to me and should be

C(n+1,:)=A(1,:)-B(2,:)

C(n+2,:)=A(2,:)-B(2,:)

C(n+3,:)=A(3,:)-B(2,:)

etc.

Answer 1

[Andrei Bobrov]

C = reshape(bsxfun(@minus,A',permute(B',[1 3 2 ])),size(A,2),[])'

or

C =  reshape(bsxfun(@minus,permute(A,[1 3 2]),permute(B,[3 1 2 ])),[],2)

or

C =  reshape(bsxfun(@minus,reshape(A,size(A,1),1,[]),reshape(B,1,size(A,1),[])),[],2)

Answer 2

[tizh]

Thank s it helped a lot :)