division of two matrices

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cgo
cgo 2015-11-16
评论： cgo 2015-11-16
I have a nx2 matrix
A = [1 1;
2 1;
3 -1;
0 1];
and I have a nx1 matrix
B = [1;
2;
3;
4];
I want the n-th row of A to be divided by the n-th row of B. How do I do that?
I only know how to say: A(1,:)./B(1,:). But I want don't want to do this manually. Thanks

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回答（2 个）

Guillaume
Guillaume 2015-11-16
编辑：Guillaume 2015-11-16
bsxfun is exactly designed for this:
A = [1 1;
2 1;
3 -1;
0 1];
B = [1;
2;
3;
4];
bsxfun(@rdivide, A, B) %rdivide is the function name for ./
Thorsten
Thorsten 2015-11-16
bsxfun(@rdivide, A, B)

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