2,658 reputation
2133
bio website ephorie.de
location Germany
age 44
visits member for 4 years, 4 months
seen yesterday

just an amateur fascinated by math


Jul
31
comment In which senses can an integral exist?
@paulgarrett: Could you please expound on this? Thank you
Jul
31
comment Hard integral that standard CAS get totally wrong
@jibounet: This is interesting, how can I see this? Can you please expound on this? Thank you.
Jul
31
revised Hard integral that standard CAS get totally wrong
added 250 characters in body
Jul
31
comment Hard integral that standard CAS get totally wrong
Because I still don't know what the problem with this question might be, I posted a follow-up question: math.stackexchange.com/questions/456506/…
Jul
31
asked In which senses can an integral exist?
Jul
31
comment Hard integral that standard CAS get totally wrong
@Did: What makes you think that this integral is divergent? How do you know? I want to know to what value this integral evaluates to. Is it 0?
Jul
31
comment Hard integral that standard CAS get totally wrong
Why do you want to close a question that asks about the value of an integral? There are thousands questions like this here!
Jul
31
comment Hard integral that standard CAS get totally wrong
@Did: No need to downvote the question. Sorry, but I don't get it. What do you mean by "in what sense"? I have never seen this question posed when somebody asked a question about the value of an integral. Please reconsider downvoting - Thank you.
Jul
31
comment Hard integral that standard CAS get totally wrong
@Did: What are the options?
Jul
31
asked Hard integral that standard CAS get totally wrong
Jul
28
awarded  Yearling
Jun
27
comment Calculating 7^7^7^7^7^7^7 mod 100
wolframalpha.com/input/…
Jun
23
answered Portfolio which replicates given payoff
Jun
23
comment Portfolio which replicates given payoff
It is not considered good style to crosspost questions without informing people about that: quant.stackexchange.com/questions/8311/…
Jun
19
answered Probability problem
May
29
awarded  Notable Question
May
20
awarded  Good Question
Apr
10
answered Eigenvectors and Principal component
Apr
9
answered Rewriting the integral $\mathrm{erf}(x) = \frac{1}{\sqrt{\pi}} \int_{-x}^x e^{-t^2} dt.$
Apr
2
awarded  Civic Duty