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 Yearling
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Feb
25
awarded  Yearling
Dec
8
awarded  Caucus
Sep
24
awarded  Autobiographer
Jul
25
answered How to prove $ \lim_{n \to \infty} e^n \cdot \left( \sum_{k=0}^{n-1} ({k-n \over e})^k/k! \right)- 2 \cdot n = \frac 23$?
Jul
2
awarded  Curious
Jun
30
awarded  Tumbleweed
Jun
23
asked Enumerating possible values of a mapping between surface and interior of sphere.
Feb
25
awarded  Yearling
Jan
3
awarded  Popular Question
Nov
17
revised Question that can not be solve analytically .
deleted 27 characters in body
Nov
17
answered Question that can not be solve analytically .
Jun
11
comment How to calculate circumference of circle in $L^p$?
Interesting observation. I had made the plot but didn't notice the relation.
May
7
awarded  Caucus
Feb
25
awarded  Yearling
Jun
12
comment is the approximation of the sum true?
Well, it doesn't seem to hold. What are the limits of $l, n$ that it is supposed to?
Jun
12
answered Dividing by 1000 twice?
Jun
9
comment How do I show that this function is always $> 0$
@AndrewSalmon: "for $x<0$". Besides, for $x>0$ the original inequality is obviously true.
Jun
9
comment How do I show that this function is always $> 0$
@DonAntonio Sure :)
Jun
9
revised How do I show that this function is always $> 0$
deleted 21 characters in body
Jun
9
comment How do I show that this function is always $> 0$
Well, not so much (unless I'm mistaken) but I don't want to give away the answer.