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

3 Ansichten (letzte 30 Tage)
intputs n, m, A, B output pcc

Antworten (2)

David Goodmanson
David Goodmanson am 3 Apr. 2018
Bearbeitet: David Goodmanson am 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

Roger Stafford
Roger Stafford am 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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