Reputation
2,234
Next privilege 2,500 Rep.
Create tag synonyms
Badges
2 12 27
Newest
 Yearling
Impact
~69k people reached

Apr
6
revised High school math definition of a variable: the first step from the concrete into the abstract…
typographic improvements
Apr
6
suggested approved edit on High school math definition of a variable: the first step from the concrete into the abstract…
Mar
30
revised What is the expression of $n$ that equals to $\sum_{i=1}^n \frac{1}{i^2}$?
Make links linky
Mar
30
suggested approved edit on What is the expression of $n$ that equals to $\sum_{i=1}^n \frac{1}{i^2}$?
Mar
30
answered 'Error term' in zeta function
Mar
28
accepted Is there a general approach to solve integrals of the form $\int\frac f{f'}$?
Mar
28
asked Is there a general approach to solve integrals of the form $\int\frac f{f'}$?
Mar
24
accepted How to come up with the gamma function?
Mar
11
comment How to come up with the gamma function?
Okay. Thank you!
Mar
11
comment How to come up with the gamma function?
YOur first interpretion is right. But your answer shows only that the integral satisfies the recurrence relation $\Gamma(x+1)=x\Gamma(x)$ and does not show how one can derive that integral.
Mar
11
comment How to come up with the gamma function?
Thank you for that answer although you don't point out how one get's to $\int_0^\infty t^ne^{-1}\;\mathrm dt$.
Mar
11
comment How to come up with the gamma function?
Sorry. I found out that the article actually contains an answer to my question, thus I removed my post.
Mar
11
asked How to come up with the gamma function?
Feb
26
comment How does one easily compute the limit of $a_n=(n\cdot \ln(\frac{n+1}{n}))^n$?
As $n$ goes to what?
Feb
20
accepted Is there a reasonable generalization of the falling factorial for real exponents?
Feb
20
asked Is there a reasonable generalization of the falling factorial for real exponents?
Feb
16
comment $y''=(y')^{3} e^{y}$, some easy way to solve this non-linear differential equation?
Did you tried using Wolfram Alpha? It can also shows you a step-by-step solution.
Jan
17
accepted Question about a lemma on continuity
Jan
17
comment Question about a lemma on continuity
@Arturo Sorry. That was a translation mistake. In German, one says "stetig" to say "continuous". stetig and steady are false friends...
Jan
17
revised Question about a lemma on continuity
added 8 characters in body