hausen Karma 174 Created 13 years ago Recent Submissions 1. ▲ Symbolic derivative calculator in JavaScript (rawgit.com) 13 points · 10 years ago · 5 comments 2. ▲ "Fixing" xkcd 1340 (gist.github.com) 132 points · 11 years ago · 28 comments All submissions on HN · View profile on HN