User Noam D. Elkies - Chess Meta Stack Exchange

Noam D. Elkies

Member for 8 years
Last seen more than a month ago

math.harvard.edu/~elkies
Harvard University, Cambridge, MA 02138

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Nov 29

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Dec 24, 2019
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Nov 29, 2015

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248

Should the formula for the inverse of a 2x2 matrix be obvious?

142

Source and context of $\frac{22}{7} - \pi = \int_0^1 (x-x^2)^4 dx/(1+x^2)$?

104

Tweetable Mathematics

91

Inverting lower triangular matrix in time $n^2$

85

Tweetable Mathematics