T. Eskin
Reputation
5,666
Next privilege 10,000 Rep.
Access moderator tools
 Dec 31 reviewed No Action Needed How to study math to really understand it and have a healthy lifestyle with free time? Dec 31 reviewed No Action Needed Question about the meaning of expression in cryptography Dec 31 revised Cardinality of a power set Added latex. Dec 31 revised Cardinality of a power set added 4 characters in body Dec 30 reviewed Approve How do I show that the pythagoras theorem holds for the specific case of an “isosceles right triangle”? Dec 30 reviewed Looks OK Probability of event on Poisson process arrival Dec 30 reviewed No Action Needed Itô's lemma to solve the SDE Dec 30 reviewed Reviewed Polar plane curves algebraic Dec 30 comment Polar plane curves algebraic Hi BJ Henderson. Welcome to MSE. You might want to consider using latex coding to make your responses more readable. In the current format the arguments are not very easy to follow. Dec 29 reviewed Approve Show $\lim\limits_{n\to\infty} n \ln\left(1-\frac{1}n\right) = -1$ Dec 29 comment show that the interval of the form $[0,a)$ or $(a, 1]$ is open set in metric subspace $[0,1]$ but not open in $\mathbb R^1$ Note that if $x=0$, you are not able to consider the case $x\in (a,1]$, so you may just take $r=a$. Also if $x\neq 0$, note that $|a-x|=|x-a|$. So this shortens also a little bit. And how is it possible that $(x-r,x+r)\subset (0,x)$ or $(x,1)$? Dec 29 revised show that the interval of the form $[0,a)$ or $(a, 1]$ is open set in metric subspace $[0,1]$ but not open in $\mathbb R^1$ edited body; edited title Dec 29 revised Is $\sum_{k=m+1}^{n} \frac{1}{2^k} < \frac{1}{2^m}$ true in general? added 4 characters in body; edited tags Dec 29 reviewed No Action Needed Boyd & Vandenberghe, question 2.31(d). Stuck on simple problem regarding interior of a dual cone. Dec 29 reviewed No Action Needed What are matrix coefficients in linear algebra? Dec 29 reviewed No Action Needed Boyd & Vandenberghe, question 2.31(d). Stuck on simple problem regarding interior of a dual cone. Dec 28 reviewed Looks OK counterexample for the fixed point theorem Dec 28 reviewed Approve Help me matlab,find $f(x)$ from $f(g(x))$…thanks a lot! Dec 27 reviewed No Action Needed Calculating the index of a subgroup in a free group Dec 27 reviewed No Action Needed Gaussian prior from feature to input space