vonjd
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 Jul31 comment In which senses can an integral exist? @paulgarrett: Could you please expound on this? Thank you Jul31 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. Jul31 revised Hard integral that standard CAS get totally wrong added 250 characters in body Jul31 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/… Jul31 asked In which senses can an integral exist? Jul31 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? Jul31 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! Jul31 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. Jul31 comment Hard integral that standard CAS get totally wrong @Did: What are the options? Jul31 asked Hard integral that standard CAS get totally wrong Jul28 awarded Yearling Jun27 comment Calculating 7^7^7^7^7^7^7 mod 100 wolframalpha.com/input/… Jun23 answered Portfolio which replicates given payoff Jun23 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/… Jun19 answered Probability problem May29 awarded Notable Question May20 awarded Good Question Apr10 answered Eigenvectors and Principal component Apr9 answered Rewriting the integral $\mathrm{erf}(x) = \frac{1}{\sqrt{\pi}} \int_{-x}^x e^{-t^2} dt.$ Apr2 awarded Civic Duty