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Multiplying vector members without repeating

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giometar
giometar 2018-7-4
评论： giometar 2018-7-4
Hi I need to multiply values from one vector in all combinations. For example Lets say that vector A=[1 2 3 4]' I need to get these products 1*2 1*3 1*4 2*3 2*4 3*4
Thanks for help

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Stephen23
Stephen23 2018-7-4
编辑：Stephen23 2018-7-4
>> A = 1:4;
>> prod(nchoosek(A,2),2)
ans =
2
3
4
6
8
12

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