Finding common elements in an array (even if they are not in the same position)

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I have two vectors a and b. Both vectors may not be of the same length. I want to find the common elements between these vectors. For example, if the number 1 appears in both vectors a and b, then i should output 1 and all other common elements.
I am struggling to think of how to do this. Any insights? Thanks

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Matt J
Matt J 2022년 7월 21일
a=1:10
a = 1×10
1 2 3 4 5 6 7 8 9 10
b=[1,11]
b = 1×2
1 11
c=intersect(a,b)
c = 1

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