Mathematics
Wolfgang's user avatar
Wolfgang's user avatar
Wolfgang's user avatar
Wolfgang
  • Member for 11 years, 11 months
  • Last seen this week
  • France
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932
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14
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47
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All Questions Answers
Score Newest
question
18
How to prove $\int_0^\infty\frac {\tanh(x)-x\exp(-x)}{x^2}dx=\frac{\zeta'(0)}{\zeta(0)}-\frac{\zeta'(2)}{\zeta(2)}+\gamma-\frac73\log(2)$?
Apr 17, 2022
question
9
Defining irreducible polynomials recursively: how far can we go?
Nov 9, 2013
answer
8
How to prove that: $\tan(3\pi/11) + 4\sin(2\pi/11) = \sqrt{11}$
Mar 22, 2012
question
7
Is there a definite integral that yields $e^\pi$ or $e^{-\pi}$ in a non trivial way?
Mar 20, 2012
question
7
Tough integral $\int_0^{ \pi }\frac{x^2(\pi-x)^2}{\sin^2 x} dx =6\pi\zeta(3) $
Apr 26, 2022
question
5
How to sum the divergent series $1+2+2+3+3+3+\cdots$ and $1+3+2+6+5+4+\cdots$?
Jan 27, 2014
question
3
Integer matrices of constant widths
Mar 8, 2012
question
3
A challenging non homogenous fractional inequality.
Oct 12, 2013
question
3
Looking for a closed form of a polylog expression involving the golden ratio
Mar 15, 2017
answer
3
Minimum number of straight lines to cover $n \times n$ grid?
Aug 26
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50
Structures that turn out to exhibit a symmetry even though their definition doesn't
48
Are there examples of conjectures supported by heuristic arguments that have been finally disproved?
38
Collection of equivalent forms of Riemann Hypothesis
33
tiling a rectangle with the smallest number of squares
33
Representations of $\zeta(3)$ as continued fractions involving cubic polynomials

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