Mathematics
Anders Kaseorg's user avatar
Anders Kaseorg's user avatar
Anders Kaseorg's user avatar
Anders Kaseorg
  • Member for 11 years, 1 month
  • Last seen this week
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79
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23
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23
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61
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43
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16
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25
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View all questions and answers
All Questions Answers
Score Newest
answer
25
Is $\sum_{a=0}^m\sum_{b=0}^n\cos(abx)$ always positive?
Oct 24, 2021
answer
24
Show that $\left(\frac{x_1^{x_2}}{x_2}\right)^p+\left(\frac{x_2^{x_3}}{x_3}\right)^p+\cdots+\left(\frac{x_n^{x_1}}{x_1}\right)^p\ge n$ for any $p\ge1$
Nov 1, 2021
answer
15
How few $(42^\circ,60^\circ,78^\circ)$ triangles can an equilateral triangle be divided into?
Jan 11, 2021
answer
15
Four Dragon Curves are Edge-covering/Plane-tiling
Jan 7, 2019
answer
13
Geometric proof of $\cos A + \cos B + \cos C + \cos (A+B+C) = 4 \cos \frac{A+B}{2} \cos \frac{B+C}{2} \cos \frac{A+C}{2}$
Sep 28, 2021
answer
10
Seems to be the optimal coefficient, $k$ integral inequality $\int_{0}^{1}f^2(x)dx\le \frac{423405}{246064}\left(\int_{0}^{1}f(x)dx\right)^2$
Mar 4, 2022
answer
9
Covering area as much as possible over $[0,1]^2$ keeping the average of each axis above a certain level
Sep 19, 2022
answer
8
Least square fit of ellipse worsens with increasing border thickness
Oct 7, 2021
answer
8
Possible "clever" ways to solve $x^4+x^3-2x+1=0$, with methodological justification
Oct 8, 2022
answer
7
Chatting about mathematics (with real-time LaTeX rendering)
Mar 29, 2020
Top network posts
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139
Paint Starry Night, objectively, in 1kB of code
113
"KNOT" or "NOT"?
78
Write Moby Dick, approximately
67
Shortest Error Message
64
Output with the same length as the code

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