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 Jun25 asked partial derivatives of Dirac functions Jun21 comment Proof of $\int_0^\infty \frac{\sin x}{\sqrt{x}}dx=\sqrt{\frac{\pi}{2}}$ Thanks, awesome answer, the trick is to take this quarter circle Jun20 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? Jun14 comment How many are possibilities to build count $n$ summing $k$ other counts? you forgot 5+0+0 Jun14 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)? Jun4 comment Multiplying using reciprocal, addition and subtraction Are you sure it isn't $*/*$ (division of any pair) instead of inverse $1/*$? May31 awarded Talkative May29 awarded Notable Question May27 comment Why Circle encloses largest Area? merci @Pierre-Yves it's clear May26 comment Why Circle encloses largest Area? Could you explain the last equality $\sum_{n\in\mathbb Z}\ n^2\ |c_n|^2=1$? May22 suggested rejected edit on Are matrices rank 2 tensors? May21 awarded Supporter May4 answered Question on proof of Solutions of Linear Equations May1 comment Normal Distribution Quantiles and Value at Risk Also, don't smoke Mar7 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) Feb20 revised Calculate interests deleted 57 characters in body Feb20 revised Calculate interests added 55 characters in body Oct26 awarded Popular Question Sep22 awarded Tumbleweed Sep15 asked Removing density functions 'offset'