how to get the value from particular index will be given in array

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singh
singh 2015-4-17
回答： Star Strider 2015-4-17
how to get the multiple value from in the array through index value
I have array which contain multiple values A1=
12
23
50
61
74
92
but i have another array which contain the index value of Array A1 is called Array A2=
2
3
5
now i wish to take the A3 array which contain only that A1 values which index will be present in A2.

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采纳的回答

Star Strider
Star Strider 2015-4-17
If I understand correctly, I believe this is what youwant:
A3 = A1(A2)
produces:
A3 =
23
50
74

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