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Mathematics
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Phira

Older than the internet, younger than the moon landing.

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  • Member for 8 years, 1 month
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  • Last seen May 2 at 16:15

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Top posts (455) All Questions Answers | Votes Newest

75 True or false? $x^2\ne x\implies x\ne 1$ Dec 5 '11
42 Order of finite fields is $p^n$ Oct 15 '11
41 Identity for convolution of central binomial coefficients: $\sum\limits_{k=0}^n \binom{2k}{k}\binom{2(n-k)}{n-k}=2^{2n}$ May 9 '11
37 Why not include as a requirement that all functions must be continuous to be differentiable? Jun 19 '18
34 “How long 'til we get there?” Road trip puzzle Nov 27 '12
33 How to study math to really understand it and have a healthy lifestyle with free time? Oct 24 '11
33 Why worry about commutativity but not associativity in The Fundamental Theorem of Arithmetic? Nov 2 '11
28 The Mathematics of Tetris Nov 8 '11
23 How can I sum the infinite series $\frac{1}{5} - \frac{1\cdot4}{5\cdot10} + \frac{1\cdot4\cdot7}{5\cdot10\cdot15} - \cdots\qquad$ Apr 23 '11
22 Intuitive use of logarithms Apr 29 '11
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