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Paramanand Singh's user avatar
Paramanand Singh's user avatar
Paramanand Singh's user avatar
Paramanand Singh
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I am a software development manager residing in Greater Noida, India. My primary interest is mathematics. I study mathematics on my own through various online sources available and try to present my understanding in my blog. A summary of the blog is available via browsing the archives page.

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89
Denesting radicals like $\sqrt[3]{\sqrt[3]{2} - 1}$
Jul 19, 2014
71
Why does simplifying a function give it another limit
Jun 12, 2016
56
Simplest way to get the lower bound $\pi > 3.14$
Oct 23, 2017
52
Ramanujan's approximation for $\pi$
Sep 7, 2014
48
An infinite series plus a continued fraction by Ramanujan
Jun 14, 2014
46
showing that $n$th cyclotomic polynomial $\Phi_n(x)$ is irreducible over $\mathbb{Q}$
Oct 20, 2013
44
What is the use of hyperreal numbers?
Jun 23, 2016
43
How to calculate $\lim_{x \to 0} \frac{x^{6000} - (\sin x)^{6000}}{x^2(\sin x)^{6000}}$?
May 15, 2016
42
The Main Theorems of Calculus
May 16, 2016
41
What even *are* elliptic functions?
Oct 10, 2019
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2021 Election Results: Congratulations to our new moderators!
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2020 Moderator Election Q&A - Questionnaire
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Requests for Reopen & Undeletion Votes (volume 01/2022 - today)
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Low voter turnout in elections
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Vandalizing question posted by others
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26
A sum by Ramanujan for $\coth^{2}(5\pi)$
25
Reference request: proof of Ramanujan's Cos/Cosh Identity
19
Ramanujan's series $1+\sum_{n=1}^{\infty}(8n+1)\left(\frac{1\cdot 5\cdots (4n-3)}{4\cdot 8\cdots (4n)}\right)^{4}$
17
Ramanujan's series for $(1/\pi)$ and modular equation of degree $29$
14
Transcendence of $\Gamma(1/3), \Gamma(1/4)$