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Mathematics
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Yuriy S's user avatar
Yuriy S's user avatar
Yuriy S
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128
All real numbers in $[0,2]$ can be represented as $\sqrt{2 \pm \sqrt{2 \pm \sqrt{2 \pm \dots}}}$
Apr 6, 2016
69
Conjectures that have been disproved with extremely large counterexamples?
Aug 4, 2016
60
Mirror algorithm for computing $\pi$ and $e$ - does it hint on some connection between them?
Feb 21, 2016
56
Crazy pattern in the simple continued fraction for $\sum_{k=1}^\infty \frac{1}{(2^k)!}$
Aug 29, 2016
43
Prove inequality $\arccos \left( \frac{\sin 1-\sin x}{1-x} \right) \leq \sqrt{\frac{1+x+x^2}{3}}$
Aug 25, 2016
40
Closed form for $\left(1+\left(\frac{1}{2}+\left(\frac{1}{3}+\left(\frac{1}{4}+\cdots\right)^2\right)^2\right)^2\right)^2$?
Apr 9, 2016
40
Prove that $\frac{1}{\phi}<\int_0^\infty \frac{e^{-x}}{\Gamma(x)} dx< \frac{24+\sqrt{2}}{41} $
Jan 17, 2017
36
Nested root integral $\int_0^1 \frac{dx}{\sqrt{x+\sqrt{x+\sqrt{x}}}}$
Apr 12, 2016
34
Why is this trigonometric identity true?
Nov 11, 2016
34
A sequence of coefficients of $x+(x+(x+(x+(x+(x+\dots)^6)^5)^4)^3)^2$
Sep 1, 2016
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How to begin working on a problem?
29
Can we make it impossible for the asker to delete a question which has at least one answer (no matter the upvotes)?
18
Answers which take advantage of poor wording of the question, even when it's clear what the real question is
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62
An infinite train circling the planet that never stops
36
Warrior caste in an utopian society: what would keep them peaceful for centuries?
17
Can you recreate this fractal I randomly made?
16
Similarity between Schrodinger and Euler-Bernoulli equations - any possible physical meaning?
16
Why do we still use perturbation theory, when we have advanced numerical methods and fast computers?