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 Feb 6 awarded Yearling Jan 29 asked Convex problem with linear constraints Jan 28 asked Submodularity definition Nov 8 awarded Necromancer Nov 2 awarded Notable Question Oct 14 awarded Popular Question Jul 7 answered Arguing a stationary distribution exists Jun 11 comment Example of periodic $f\left(x\right)+xg\left(x\right)$, where f is even function and g is periodic $f(x)=cos(x)$ and $g(x)=sin(x)/x$. Jun 1 accepted Which of two quantities is greater? May 30 comment Which of two quantities is greater? Thanks @Michael. For the comparison of these functions, (say $f$ and $g$), I can simply show $f(0)=g(0)$, the slope of $g$ is more negative than that of $f$ and that $g$ is decreasing throughout $(0,1)$. Is that right or is there a more compact way of doing this? May 30 comment Which of two quantities is greater? Hi. I have a follow-up question: I need to show $(x-y)^{((x-y)/(2x-y))}\times (x+y)^{((x)/(2x-y))}>x$. I am not sure how the AM-GM inequality leads to this, as the GM is on the LHS? May 29 asked Which of two quantities is greater? May 21 comment Computing expectation of a function of two random variables @zoli: Yes, there are $N-1$ independent draws and the $N^{th}$ is dependent on the previous draws. Your understanding is right. May 21 comment Computing expectation of a function of two random variables @zoli: Why not? I never said within array $X$, the draws are independent. $x_n(\omega)=S_x-\sum_{i=1}^{N-1}x_i$ for all $\omega$. May 21 comment Computing expectation of a function of two random variables @zoli: One number in the array. Distribution with finite support on the real line. May 21 asked Computing expectation of a function of two random variables May 13 asked Scale-free property of random graphs Apr 24 comment Continuity of optimisation problem @calculus: I have solved $F(z)$, the issue is about the continuity of $F(z)$. The solution exhibits a discontinuity at $z=0$. My question is for what classes of optimisation problems will such a discontinuity not be there? Apr 24 asked Continuity of optimisation problem Apr 17 awarded Popular Question