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how to make a function (named pcc ) that solves the cartesian product of 2 strings A(with n elements) and B(with m elements)?

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Cosmin Grab
Cosmin Grab 27 Mar 2018
intputs n, m, A, B output pcc

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David Goodmanson
David Goodmanson 3 Apr 2018
David Goodmanson 님이 편집함. 3 Apr 2018
Hi Cosmin,
If by 'strings' you mean vectors of characters then there are questions about how to accomplish multiplication. If you mean vectors of numbers, then in this context the Cartesian product is the same as the outer product, multiplication of a column vector by a row vector:
a = [1 2 3].'
b = [4 5 6 7]
a*b
ans =
4 5 6 7
8 10 12 14
12 15 18 21

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Roger Stafford
Roger Stafford 3 Apr 2018
Assume A and B are row strings.
C = [reshape(repmat(A,length(B),1),[],1),repmat(B(:),length(A),1)];
The two-element rows of C will contain all possible pairs of elements of A and B.

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