User contributions
- 08:39, 17 October 2021 (diff | hist) . . (+187) . . Talk:2529: Unsolved Math Problems
- 16:35, 4 October 2021 (diff | hist) . . (-19) . . 2523: Endangered (Undo revision 218791 by 108.162.237.87 (talk) - doesn't need tag, it's obvious)
- 12:38, 31 August 2021 (diff | hist) . . (-5) . . 2509: Useful Geometry Formulas (→Transcript: oops, d is major axis, not semi-major axis)
- 22:11, 2 August 2021 (diff | hist) . . (+20) . . 2497: Logic Gates (→Explanation)