Mathematics
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xen
  • Member for 12 years, 6 months
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Top posts
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All Questions Answers
Score Newest
answer
80
How can I evaluate $\sum_{n=0}^\infty(n+1)x^n$?
Apr 3, 2011
question
23
Compactness of a bounded operator $T\colon c_0 \to \ell^1$
Apr 3, 2011
answer
18
Plot $|z - i| + |z + i| = 16$ on the complex plane
Mar 31, 2012
question
15
"Strong" derivative of a monotone function
Nov 23, 2011
answer
15
How to compute infinite series $\sum_{n=0}^{\infty} ne^{-n}$
Oct 13, 2013
answer
13
What's the connection between the Laplace transform and the Fourier transform?
Mar 18, 2011
answer
9
For any real number $c$, the polynomial $x^3 + x + c$ has exactly one real root
Nov 23, 2012
answer
9
Evaluating $\lim\limits_{x\rightarrow0}\frac{e^{-1/x^2}}{x}$
Apr 3, 2013
answer
8
Bijection between an open and a closed interval
Mar 22, 2011
question
7
Bounded operator from a Hilbert space to $\ell^1$ is compact
Nov 1, 2011
Top network posts
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9
Auto labeling environments in AUCTeX
5
Why doesn't latexmk handle errors in the preamble?
5
Widetilde and prime (derivative) position

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