tree 1ac9a91f1679a74e7aa3868287c1331404967c09
parent cba29c894aace569f13e6bf83bc6ef06fd448712
author ILYA Khlopotov <iilyak@ca.ibm.com> 1463429259 -0700
committer ILYA Khlopotov <iilyak@ca.ibm.com> 1463429259 -0700

Add basic combinatorics functions

- powerset/1
- permutations/1
- product/1
- binary_combinations/1
- n_combinations/2