Mathematics
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Antonio Vargas
  • Member for 11 years, 4 months
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About

I like studying the zeros of functions. Here's a list of my answers on the topic here on Math.SE. I also enjoy answering questions about asymptotics in general.

Check out my attempt to add real-time previews for comments here on Stack Exchange.

Also take a look at this problem sequence which guides the reader through an application of the saddle point method and derives the equation of the famous Szegő curve.

My avatar is cropped from this image by Garyck Arntzen.

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Top posts
View all questions and answers
All Questions Answers
Score Newest
answer
37
Derivation of asymptotic solution of $\tan(x) = x$.
Feb 22, 2012
answer
37
Evaluate:: $ 2 \sum_{n=1}^\infty \frac{(-1)^{n+1}}{n+1}\left( 1 + \frac12 +\cdots + \frac 1n\right) $
Feb 2, 2013
answer
28
Choice of $q$ in Baby Rudin's Example 1.1
May 6, 2012
answer
28
Approximation to the Lambert W function
Aug 8, 2013
answer
27
Finding the value of $\sqrt{1+2\sqrt{2+3\sqrt{3+4\sqrt{4+5\sqrt{5+\dots}}}}}$
Jul 4, 2013
answer
25
Calculating a real integral using complex integration
Apr 23, 2012
answer
24
What's the behaviour of $I_n=\int_0^1\left(\frac1{\log x}+\frac1{1-x}\right)^ndx$, as $n \to \infty$?
Jul 25, 2014
answer
23
Rounding is asymptotically useless?
Mar 3, 2012
question
23
Showing that $\gamma = -\int_0^{\infty} e^{-t} \log t \,dt$, where $\gamma$ is the Euler-Mascheroni constant.
Feb 23, 2012
answer
23
Number of real positive roots of a polynomial?
Jul 26, 2013
Top Meta posts
1
20
91
An attempt to add real-time previewing for comments
21
What is the purpose of this site?
8
MathJax 2.6 beta
8
Feature request - but it woudn't be a feature, it'd be a blessing - editing panel and preview side-by-side - fighting lag on large answers!
7
Is it possible to change/enlarge font?
Top network posts
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34
How can I make points "glow"?
13
let PageDown and MathJax work together
10
Binomial Regression "logit" vs "cloglog"
8
Asymptotic expansion of $\zeta(s \mid a,b)= \sum_{n=1}^{\infty} \frac{1}{(n+a)^{s}(n+b)}$
5
Numerically solving a system of PDEs where one function is composed with the other

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