A friendly helper's user avatar
A friendly helper's user avatar
A friendly helper's user avatar
A friendly helper
  • Member for 10 years, 8 months
  • Last seen more than 9 years ago
21 votes
8 answers
3k views

Shuffle product of two lists

9 votes
4 answers
2k views

Checking for duplicates in sublists

6 votes
2 answers
4k views

Sum over all permutations

1 vote
2 answers
166 views

How to "reversely" replace definitions?