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seen Aug 6 at 23:42
Always a beginner.

Jul
3
answered How to distinguish walking on a sphere or on a torus?
Nov
12
answered General formula for roots for cubic equation
May
22
awarded  Necromancer
Jan
1
awarded  Teacher
Nov
11
awarded  Editor
Nov
11
revised Good Physical Demonstrations of Abstract Mathematics
example added
Nov
11
answered Good Physical Demonstrations of Abstract Mathematics
Nov
11
comment Good Physical Demonstrations of Abstract Mathematics
Also, that an cyclonic system must always exist. On a planet.