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7h
accepted Segment ordered density conjecture.
19h
awarded  Nice Answer
1d
awarded  Yearling
Dec
15
awarded  Caucus
Dec
14
revised Integer part of a sum (floor)
added 195 characters in body
Dec
14
comment Integer part of a sum (floor)
@Silencer If the answer 2008 is correct then it makes the mathematical proof of this problem even more interesting!
Dec
14
comment Integer part of a sum (floor)
@CFG Would you be so kind and edit your problem so that it reflects the things you knew like the fact that the sum is telescoping and that it reduces to $x_{2015}$?
Dec
14
awarded  Critic
Dec
14
revised Integer part of a sum (floor)
added 52 characters in body
Dec
14
answered Integer part of a sum (floor)
Dec
13
revised Converging series
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Dec
13
answered Use the Mean Value Theorem to show that if $|f'(x)| ≤ C<1$, then $f$ has at most one fixed point
Dec
12
answered Find all real real functions that satisfy the following eqation $f(x^2)+f(2y^2)=[f(x+y)+f(y)][f(x-y)+f(y)]$
Dec
12
answered Solution to functional equation and Cauchy
Dec
11
comment The Coercivity of uniformly positive definite Matrix of Sobolev function
@wisher So is your definition correct? Take $\xi=0$ see what happens.
Dec
11
comment Determine the convergence of the following series
@Username19 What is $e^{\ln k}$?
Dec
11
revised Determine the convergence of the following series
added 64 characters in body
Dec
11
answered Determine the convergence of the following series
Dec
11
answered The Coercivity of uniformly positive definite Matrix of Sobolev function
Dec
9
comment Converging series
@SuzuHirose Monotone convergence theorem en.wikipedia.org/wiki/Monotone_convergence_theorem