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  • 0 posts edited
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  • 20 votes cast
Sep
23
accepted Upper bound for $\sum_{i=2}^{n} 1/(i\log(i))$
Sep
23
asked Upper bound for $\sum_{i=2}^{n} 1/(i\log(i))$
Sep
7
awarded  Notable Question
Aug
21
accepted How to see that $e^{x(1+x/3)} \le (1+x)^{(1+x)}$ for very small x>0?
Aug
21
comment How to see that $e^{x(1+x/3)} \le (1+x)^{(1+x)}$ for very small x>0?
I think I see. Does this mean that it should be true even if I replace 3 by any fixed constant more than 2?
Aug
21
asked How to see that $e^{x(1+x/3)} \le (1+x)^{(1+x)}$ for very small x>0?
May
15
accepted Geometric proof for $|| u ||^2 + || v ||^2 = \frac{1}{2}||u-v||^2 + 2||\frac{u+v}{2}||^2$
May
14
asked Geometric proof for $|| u ||^2 + || v ||^2 = \frac{1}{2}||u-v||^2 + 2||\frac{u+v}{2}||^2$
Mar
20
asked Consequences of Collatz Conjecture being true
Dec
16
awarded  Caucus
Nov
19
revised 5 points on a plane with rational distances
added 25 characters in body
Nov
19
revised 5 points on a plane with rational distances
added 25 characters in body
Nov
19
revised 5 points on a plane with rational distances
added 60 characters in body; edited title
Nov
19
comment 5 points on a plane with rational distances
@MarkFischler I am sorry. I do not see why adding another point at a rational fraction between two others always works. For example, if I start with an equilateral triangle, then we cannot just add another point at a halfway between the other two, right?
Nov
19
comment 5 points on a plane with rational distances
@peterwhy Thank you. I will edit the question to 5 points now.
Nov
19
asked 5 points on a plane with rational distances
Sep
24
awarded  Autobiographer
Aug
5
awarded  Yearling
Jul
2
awarded  Curious
Mar
9
awarded  Popular Question