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 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. Jun 11 comment How do I scale 3 fractions to 3 natural numbers? "and that r is maximal rational number". Is $r$ rational, or natural? Jun 11 asked How do I scale 3 fractions to 3 natural numbers? Jun 11 comment Missing steps in the calculation of limit? Yes, thanks. +1. It's too early for an accept, there might come other answers. Jun 11 revised Missing steps in the calculation of limit? added 13 characters in body Jun 11 comment Missing steps in the calculation of limit? Thanks for the quick reply. But my problem is that in the application frequency is zero, I apply the limit for that case, as I mention in my question. Jun 11 asked Missing steps in the calculation of limit? May 31 revised GCD of rationals added link to site May 31 comment GCD of rationals Thanks for the Wolfram Alpha reference too. Interesting site, though I guess you guys would use Mathematica. Also gives additional information like series representation and prime factorization. I took the liberty of adding a link to it. May 31 suggested approved edit on GCD of rationals May 30 awarded Nice Question May 29 comment GCD of rationals @WillieWong - Why did you remove the [GCD] tag? Because it's a new one? But it is about GCD, and the [GCD] tag may help people who're looking for information. May 29 revised GCD of rationals added 66 characters in body May 29 asked GCD of rationals May 24 comment Explaining why sin and cos are *not* at right angles The "boring statement" is interesting. I just posted about the Fourier series on electronics.stackexchange, and used this to explain an alternative definition (sum of only sines instead of sin + cos)! :-) May 24 revised Explaining why sin and cos are *not* at right angles fixed lapsus in equation May 24 revised Explaining why sin and cos are *not* at right angles added 32 characters in body May 24 comment Explaining why sin and cos are *not* at right angles You're right, the sine and cosine in the quote seem to refer to functions. I'll fix it. May 24 comment Explaining why sin and cos are *not* at right angles @Rahul - I think I can see that. I see the curve of both functions, and they're indeed $\pi$/2 apart. That $\pi$/2 is in the argument of the function, in the function's value there's nothing of that left. I understand that the sine value 0.6 is Obama, but this guy claims that Obama and Bush are orthogonal. Two scalars!