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seen Sep 5 at 16:26

Jun
20
comment Proof of $\int_0^\infty \frac{\sin x}{\sqrt{x}}dx=\sqrt{\frac{\pi}{2}}$
I guess you take a half-circle as contour, I can't get your first equality with $\sqrt i$, could you expand please?
Jun
14
comment How many are possibilities to build count $n$ summing $k$ other counts?
you forgot 5+0+0
Jun
14
comment How many are possibilities to build count $n$ summing $k$ other counts?
What are the scores for (5,3), (5,4), (5,5), (5,6)?
Jun
4
comment Multiplying using reciprocal, addition and subtraction
Are you sure it isn't $*/*$ (division of any pair) instead of inverse $1/*$?
May
31
awarded  Talkative
May
29
awarded  Notable Question
May
27
comment Why Circle encloses largest Area?
merci @Pierre-Yves it's clear
May
26
comment Why Circle encloses largest Area?
Could you explain the last equality $\sum_{n\in\mathbb Z}\ n^2\ |c_n|^2=1$?
May
22
suggested rejected edit on Are matrices rank 2 tensors?
May
21
awarded  Supporter
May
4
answered Question on proof of Solutions of Linear Equations
May
1
comment Normal Distribution Quantiles and Value at Risk
Also, don't smoke
Mar
7
comment What is exponentiation?
isn't $a^{\pi} < max(a^3,a^4)$ enough to say it's convergent (since it's also increasing with your decomposition)
Feb
20
revised Calculate interests
deleted 57 characters in body
Feb
20
revised Calculate interests
added 55 characters in body
Oct
26
awarded  Popular Question
Sep
22
awarded  Tumbleweed
Sep
15
asked Removing density functions 'offset'
Jul
1
awarded  Popular Question
Dec
3
awarded  Promoter