New answers tagged permutation
5
votes
Reorder indices alphabetically in each term of a sum
I think this can be simplified, but here's a way. Define a function that does the work on one summand at a time.
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5
votes
Accepted
3
votes
Sort two lists at the same time, based on another
Using PositionIndex:
pi = PositionIndex@perm;
pi[#] & /@ x // Flatten
or
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- 59.4k
2
votes
Terse Method to Swap Lowest for Highest?
Prior to v13.2:
1- Using SubsetMap is not compatible with much older versions. In that case, the Part method shown later can be ...
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6
votes
Accepted
Deciding whether two sets of permutations are isomorphic
Using FindGroupIsomorphism from the Wolfram Function Repository, we see
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1
vote
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