How to determine number of common elements between two vectors?

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Mr M.
Mr M. 2015-9-18
回答： Adam 2015-9-18
for example X = 1:10 Y = [5,7,13,25,45,56] So 5 and 7 are the common elements, and the answer should be 2.

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Adam
Adam 2015-9-18
numel( intersect( X, Y ) )

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