1,667 reputation
925
bio website fuz.su/~fuz
location Berlin, Germany
age 19
visits member for 3 years, 11 months
seen 10 hours ago

I am a student of computer science and mathematics at the Humboldt University of Berlin.


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
Jan
17
asked Question about a lemma on continuity
Jan
8
comment Given the cartesian coordinates of four points, how to calculate the interection of two lines they form?
@J.M. Oh yeah. That looks good. THank you! BTW, is there a solution that use the $r,\vartheta$ representation instead?
Jan
8
comment Given the cartesian coordinates of four points, how to calculate the interection of two lines they form?
@J.M. Of course. This possibility is ruled out.
Jan
8
asked Given the cartesian coordinates of four points, how to calculate the interection of two lines they form?