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## select equal element between matrices

**From**: |
gigiolone123 |

**Subject**: |
select equal element between matrices |

**Date**: |
Fri, 8 Feb 2019 17:26:33 -0600 (CST) |

hi guys, a give you a difficult question
a=[3 2 5 5 6 6 2 3]
b=[0 1 0 0 1 1 0 0]
c=["a","b","a","a","b","c","a","a"]
I want combine each index with the others
ans:
3 0 a
2 1 b
5 0 a
5 0 a
6 1 b
6 1 c
2 0 a
3 0 b
I consider only the same pairs (3 0 a and 5 0 a)
returns the number index of equal pairs
ans:[1 4]
it's possibile to do this avoit loop? thank
--
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**select equal element between matrices**,
*gigiolone123* **<=**