Ben Alpert
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 Mar 20 revised Salt concentration as a function of time edited tags Mar 20 suggested approved edit on Non-Standard Deviation Mar 20 comment Is $\nu_1\perp\nu_2$ equivalent to $|\nu_1|\perp|\nu_2|$ for complex measure? You may want \perp instead of \bot; the spacing is better with \perp. Mar 20 revised Quicksort with Trivalued Logic angle brackets were being screwy and confused Mar 20 suggested approved edit on Quicksort with Trivalued Logic Mar 5 answered Why is the 2nd derivative written as $\frac{\mathrm d^2y}{\mathrm dx^2}$? Feb 26 awarded Citizen Patrol Feb 17 comment Proving the value of a limit using the $\epsilon$-$\delta$ definition I don't think your sarcastic condescension helps anyone. Feb 13 revised Finding $\int_0^{\pi/2} \sin x\,dx$ deleted 39 characters in body Feb 13 comment Finding $\int_0^{\pi/2} \sin x\,dx$ @Arturo: Yes, but why is the derivative of $\cos(x)$ equal to $-\sin(x)$ when $x$ is measured in radians? Feb 13 comment Finding $\int_0^{\pi/2} \sin x\,dx$ @Isaac, you're right that that does make more sense. I'll change my question (though I'm not sure it was particularly unclear originally). Feb 13 comment Finding $\int_0^{\pi/2} \sin x\,dx$ So you answered why the integrals give different answers scaled by a the ratio between a degree and a radian, but I already knew this. My question was why radians are special and give the answer of 1 (which you skip entirely when you say, "We know that…"). Sorry if my question was unclear. Feb 13 asked Finding $\int_0^{\pi/2} \sin x\,dx$ Feb 13 accepted Coloring points on an n-gon Feb 13 comment Coloring points on an n-gon Perfect, exactly what I was looking for! Feb 13 comment Coloring points on an n-gon Thanks; I'm accepting Qiaochu's answer because it's more complete (and also was a few seconds before yours). Feb 13 asked Coloring points on an n-gon Jan 26 comment I want to put my words into a formula/algorithm but I lack the mathematical fortitude I agree with Yuval here; there's no reason to use any fancy math notation because the words you have currently are already very clear. Adding any symbols would unnecessarily complicate the algorithm. (And anyway, I don't think that there is any standard notation for what you want. Probably the best you can do is just write pseudocode for the algorithm, but that's not particularly mathy.) Jan 24 comment Algorithm for generating integer partitions @Will: Are you sure? I think that should work fine; that's what maxval is for. Jan 22 comment a question related to two competing patterns in coin tossing @PEV: I can't tell if I'm just being really stupid here, but I'm still unsure how that helps. For example, if with a fair coin you're looking for TH vs HH, it's much more likely ($3/4$ vs. $1/4$) that you'll see TH first because once you see a single T, it's impossible to get HH before seeing TH. How do we get the same answer using your method? (Presumably that would be $pq$ vs $p^2$.)