Mathematics
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David Lewis

Apparently, this user prefers to keep an air of mystery about them.

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  • Boston, MA, US
  • Member for 10 years, 7 months
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  • Last seen Dec 30 '20 at 23:28

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22 Taking Seats on a Plane Oct 1 '10
21 Why eliminate radicals in the denominator? [rationalizing the denominator] [duplicate] Mar 9 '11
20 Eilenberg's rational hierarchy of nonrational automata & languages Feb 2 '12
14 A challenge by R. P. Feynman: give counter-intuitive theorems that can be translated into everyday language Jul 27 '10
13 A challenge by R. P. Feynman: give counter-intuitive theorems that can be translated into everyday language Sep 18 '10
9 Intuitive understanding of the derivatives of $\sin x$ and $\cos x$ Jul 28 '10
9 How to calculate reflected light angle? Aug 8 '10
8 Math for computer science? Jun 9 '12
7 Derivation of the formula for the vertex of a parabola Aug 6 '10
7 Law of cosines with impossible triangles Jul 27 '10
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