Raphael
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 Jul 22 awarded Talkative Nov 23 awarded Disciplined Nov 19 awarded Nice Question Nov 12 comment Evaluate $\int_{0}^{\pi/2}\frac{1+\tanh x}{1+\tan x}dx$ @Lucian Is the integral even finite frmo $0$ up to $3\pi/4$ ? Nov 11 comment Order of magnitudes comparisons Try taking logs of both functions. Note that when you take logs of $g(x)$ you end up with a sum that you should find easy to bound. Nov 11 comment Asymptotic relation between specific binomial coefficient and exponential function Try taking logs of both $f_1(n)$ and $f_2(n)$. Feb 24 revised Number of vectors so that no two subset sums are equal fixed upper bound Feb 24 suggested approved edit on Number of vectors so that no two subset sums are equal Feb 21 comment How many $n\times m$ binary matrices are there, up to row and column permutations? The first is broken now but I would love to know the answer. Is there an alternative source? Feb 20 awarded Investor Sep 25 revised Simplest proof that $\binom{n}{k} \leq \left(\frac{en}{k}\right)^k$ deleted 113 characters in body Sep 25 accepted Simplest proof that $\binom{n}{k} \leq \left(\frac{en}{k}\right)^k$ Sep 25 revised Simplest proof that $\binom{n}{k} \leq \left(\frac{en}{k}\right)^k$ added 117 characters in body Sep 25 asked Simplest proof that $\binom{n}{k} \leq \left(\frac{en}{k}\right)^k$ Mar 29 comment Convergence of sum of Bernoullis @Fylos I think the OP is asking something a little different. As far as I can tell marais wants to know if $X$ and $Pois(E(X))$ are very similar when $n$ is fixed but very big. Nov 27 comment Period of linear congruential generator @joriki, how about $a=6$, $c=3$, $m=7$ and $X_0 = 1$. This has period $2$ doesn't it? I.e. the sequence $1,2,1,2,1,\dots$. Nov 21 comment Fisher Information and minimum variance estimators @robjohn, I don't think you can flag posts if you are not registered. Jul 16 awarded Benefactor Jul 16 comment Average time to find a duplicate with pairwise independence Bounty awarded as this was the best answer received on math stackexchange. Thanks. Jul 16 awarded Teacher