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 Sep 12 accepted GCD of rationals Aug 27 suggested rejected edit on Prove $\sqrt{\arctan(x)} = (1/2) \arccos((1-x)/(1+x))$ Aug 27 comment Prove $\sqrt{\arctan(x)} = (1/2) \arccos((1-x)/(1+x))$ This statement is not true: Sqrt[ArcTan[x]] === 1/2 ArcCos[(1 - x)/(1 + x)] --> False. Can anybody check if my TeX-ification is correct? Aug 27 comment Prove $\sqrt{\arctan(x)} = (1/2) \arccos((1-x)/(1+x))$ This looks like a math problem, nothing to do with Mathematica. Migrate? Aug 25 awarded Good Question Aug 7 awarded Yearling Jul 7 accepted What requirements should a CRC polynomial satisfy? Jul 4 answered How to find the equation of a line tangent to a function Jul 4 comment If a function is uniformly continuous on $(-\infty,-1]$ and $[-1,\infty)$ is it uniformly continuous on $\mathbb{R}$ @Lierre - I don't think it's a typo. It would be silly to leave out ]-1,1[ and conclude that it's uniformly continuous over $\mathbb{R}$. -1 and -1 mentioned 3 times in the question, and that's also how Henning in the accepted answer interpreted it. I therefore rolled back your edit. Jul 4 suggested rejected edit on If a function is uniformly continuous on $(-\infty,-1]$ and $[-1,\infty)$ is it uniformly continuous on $\mathbb{R}$ Jul 4 comment If a function is uniformly continuous on $(-\infty,-1]$ and $[-1,\infty)$ is it uniformly continuous on $\mathbb{R}$ @Lierre - the question is about -1 as endpoints of both intervals, not -1 and 1. Jul 4 comment If a function is uniformly continuous on $(-\infty,-1]$ and $[-1,\infty)$ is it uniformly continuous on $\mathbb{R}$ I don't agree. Your argument would be valid if the intervals were half-closed, but both are closed, so the union is uniformly continuous. Jul 2 comment What is the most frequent number of edges of Voronoi cells of a large set of random points? Not a useful answer if all you get to see is a table of contents. Jun 28 awarded Popular Question Jun 20 revised Homework help with projectile motion added 6 characters in body Jun 20 answered Homework help with projectile motion Jun 20 answered Sanity check, is $\{(-9,-3),(2,-1),(7,7),(-1,-1)\}$ a function? Jun 11 comment How do I scale 3 fractions to 3 natural numbers? Second question: now that I see it, it seems obvious. I just couldn't see how to take $a$ and $b$ apart. Thanks. Jun 11 comment How do I scale 3 fractions to 3 natural numbers? I saw that, but misinterpreted. Sorry about that. Jun 11 comment How do I scale 3 fractions to 3 natural numbers? Ah, the $x$, $y$ and $z$ are not my natural number result then? Because if they were, their $\gcd$ would also be natural.