845 reputation
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bio website eelvex.net
location Greece
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visits member for 3 years, 5 months
seen Jul 28 at 13:11

(+.-.)@+: b that is the question and the answer is always true.


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.
Jun
9
answered How do I show that this function is always $> 0$
Jun
9
answered Limit of a function tending to zero.
Apr
12
comment Getting the sequence $\{1, 0, -1, 0, 1, 0, -1, 0, \ldots\}$ without trig?
@Anixx I was talking about the definition of $(-1)^n$, which is not trigonometric.