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 Apr 6 awarded Popular Question Oct 29 awarded Notable Question Jun 2 awarded Popular Question Apr 6 awarded Popular Question Mar 9 awarded Popular Question Aug 20 awarded Teacher Jul 2 awarded Curious May 5 asked How to compute the pdf of a sum of iid random variable using discrete Fourier transform? Dec 18 awarded Yearling Nov 24 accepted Unlike Jensen's Inequality, can we upper bound $\log \sum_{i}{u_i \exp(x_i)}$? Nov 24 answered Unlike Jensen's Inequality, can we upper bound $\log \sum_{i}{u_i \exp(x_i)}$? Nov 24 comment Unlike Jensen's Inequality, can we upper bound $\log \sum_{i}{u_i \exp(x_i)}$? @gammatester. Excuse me. I meant $\max_i |x_i|$. In other words, the infinite norm $||x||_\infty$, where $x = (x_1, x_2, ..., x_n)$. Nov 22 asked Unlike Jensen's Inequality, can we upper bound $\log \sum_{i}{u_i \exp(x_i)}$? Nov 12 awarded Notable Question Oct 28 awarded Popular Question Feb 4 accepted What is the combinatorial meaning of $\sum\limits_{R = 0}^{N}\binom{N}{r}\binom{N-R}{n-r} = \binom{N+1}{n+1}$? Feb 4 asked What is the combinatorial meaning of $\sum\limits_{R = 0}^{N}\binom{N}{r}\binom{N-R}{n-r} = \binom{N+1}{n+1}$? Jan 31 revised Find the equation of the tangent to the curve with exponential function I think the answer is y = 2ex-e/2. Jan 31 reviewed Reviewed Find the equation of the tangent to the curve with exponential function Jan 31 suggested approved edit on Find the equation of the tangent to the curve with exponential function