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 Feb23 awarded Popular Question Dec9 awarded Caucus Dec7 comment Volume of Parallelepiped This may be of interest: math.uchicago.edu/~may/VIGRE/VIGRE2007/REUPapers/FINALAPP/… Nov22 revised How to find probability? Formatting, language, mathjax Nov22 comment How to find probability? @alonsos I just put in an edit with proper formatting, just needs to be approved. Nov22 suggested approved edit on How to find probability? Nov18 comment Average number of tries to reach 5 successes. Well I apologize for the misunderstanding then. Thank you. Nov18 comment Average number of tries to reach 5 successes. Good answer, though 'And a failed flip when n=0' is wrong, you may have not seen the edit, but if n=0, the flip always succeeds. Nov18 comment Average number of tries to reach 5 successes. I've edited question to reflect that. Nov18 revised Average number of tries to reach 5 successes. added 153 characters in body Nov18 comment Average number of tries to reach 5 successes. @AndréNicolas No, the lowest it goes is 0. Nov18 comment Average number of tries to reach 5 successes. @Alistair The first coin, filling in the first blank that is at $1$ probability. Nov18 asked Average number of tries to reach 5 successes. Oct29 comment find the least positive residue of $1!+2!+3!+…+100!$ modulo each of the following integers What do you mean.. residue? Oct29 revised what is the limit of this special linear function? Please don't ask about why it's bad or wrong, and no need to call it a stupid system. Also, formatting. Oct29 suggested rejected edit on Closed-form of $\tan(\frac{\pi }{9})$. Oct29 suggested approved edit on what is the limit of this special linear function? Oct16 revised $\mathbb Z^n$ as a proper quotient of $\mathbb Z^m$ formatting Oct16 comment Does every vector space have an inner product? What have you tried? Why do you think yes? Oct16 comment Let $f(x)= (\sin x)^x$ Find $f'(\frac{\pi}{2})$ +1 for being clever. Hadn't thought of this.