Mathematics
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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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All Questions Answers
Score Newest
question
81
Denesting radicals like $\sqrt[3]{\sqrt[3]{2} - 1}$
Jul 19, 2014
answer
66
Why does simplifying a function give it another limit
Jun 12, 2016
question
53
Simplest way to get the lower bound $\pi > 3.14$
Oct 23, 2017
question
45
An infinite series plus a continued fraction by Ramanujan
Jun 14, 2014
answer
43
Ramanujan's approximation for $\pi$
Sep 7, 2014
question
42
What is the use of hyperreal numbers?
Jun 23, 2016
answer
42
How to calculate $\lim_{x \to 0} \frac{x^{6000} - (\sin x)^{6000}}{x^2(\sin x)^{6000}}$?
May 15, 2016
answer
37
showing that $n$th cyclotomic polynomial $\Phi_n(x)$ is irreducible over $\mathbb{Q}$
Oct 20, 2013
answer
37
The Main Theorems of Calculus
May 16, 2016
answer
33
Finding a limit using change of variable- how come it works?
Dec 18, 2014
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24
Reference request: proof of Ramanujan's Cos/Cosh Identity
23
A sum by Ramanujan for $\coth^{2}(5\pi)$
18
Ramanujan's series $1+\sum_{n=1}^{\infty}(8n+1)\left(\frac{1\cdot 5\cdots (4n-3)}{4\cdot 8\cdots (4n)}\right)^{4}$
16
Ramanujan's series for $(1/\pi)$ and modular equation of degree $29$
13
Transcendence of $\Gamma(1/3), \Gamma(1/4)$

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