Mathematics
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Phira
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Older than the internet, younger than the moon landing.

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All Questions Answers
Score Newest
answer
78
True or false? $x^2\ne x\implies x\ne 1$
Dec 5, 2011
answer
63
Order of finite fields is $p^n$
Oct 15, 2011
answer
56
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, 2011
answer
47
Why not include as a requirement that all functions must be continuous to be differentiable?
Jun 19, 2018
answer
40
How to study math to really understand it and have a healthy lifestyle with free time?
Oct 24, 2011
answer
35
"How long 'til we get there?" Road trip puzzle
Nov 27, 2012
answer
32
Why worry about commutativity but not associativity in The Fundamental Theorem of Arithmetic?
Nov 2, 2011
answer
26
The Mathematics of Tetris
Nov 8, 2011
answer
26
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, 2011
answer
25
Intuitive use of logarithms
Apr 29, 2011
Top Meta posts
13
47
57
Number-guessing, sum of all natural numbers and hot trend questions
49
People who ask homework questions and then remove them
44
Edit session for wrong spelling of mathematicians and mathematical concepts
43
A minor gripe about upvoting things that have been downvoted [pity upvotes]
39
Cheating in the Time of Corona
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57
Gibt es im Deutschen Reste von anderen grammatischen Fällen als den vier üblichen?
47
Can the apparent equal size of sun and moon be explained or is this a coincidence?
46
Does Pascal's Wager contain any logical flaws or fallacies?
43
Alternating colors for lines in Google docs spreadsheet
42
How to distinguish between a female friend and a girlfriend?

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