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 Feb 16 awarded Nice Question Oct 4 revised Constrained optimization over vectors added 117 characters in body Sep 26 revised Constrained optimization over vectors deleted 1 character in body Sep 25 revised Constrained optimization over vectors edited title Sep 25 revised Constrained optimization over vectors edited title Sep 25 asked Constrained optimization over vectors Oct 6 awarded Notable Question Jul 14 comment Apparent paradox commuting this convolution: where is the mistake? Thanks a lot, I see what you mean. If only $x$ and $r$ were also Gaussian, things would be a lot better. I grew up in Philly, please enjoy omnoming a cheesesteak for me. Jul 14 accepted Apparent paradox commuting this convolution: where is the mistake? Jul 14 comment Apparent paradox commuting this convolution: where is the mistake? Thanks for the note-- I actually mean that it doesn't work for a Gaussian (I've tried massaging the Gaussian property that you're talking about to be able to reorder the operations). But good point about the frequency domain, I think that is the mistake. Jul 14 asked Apparent paradox commuting this convolution: where is the mistake? Jul 2 awarded Curious Feb 16 answered Pigeonhole Principle - Feb 9 comment Using “we have” in maths papers @MarcvanLeeuwen "We have 'one has'" Feb 8 awarded Benefactor Jan 14 comment Splitting a sandwich and not feeling deceived Nice! You used the invisible hand of the market to cut the sandwich. Jan 10 comment Why are mathematical proofs that rely on computers controversial? I also enjoy how democratized math is. I think it's difficult to draw the line between ourselves and tools we use. ME + PEN + NOTEBOOK feels close to ME, but ME + PEN + PAPER + GENIUS MATHEMATICIAN feels less. What about a calculator to avoid careless arithmetic errors? Maple / Mathematica? Perhaps sometimes it's elegant to use tools: perhaps the quote that "the best mathematician is a lazy one" is somehow akin to "the deadliest weapon in the world is a Marine and his rifle." But even as I write this, I'm reminded that flying un-manned death robots are actually the deadliest weapons... Jan 10 comment Why are mathematical proofs that rely on computers controversial? @Shayne +1 I really agree that the most elegant part is often the narrowing of the solution space, but there are those of us who take great joy in the "last mile". The jump from the statement "It is possible to do this" to "I can do this in the 1 month with a normal computer" can also be a source of grand elegance. Methods like the FFT are beautiful in themselves, and are sometimes part of the engine that allows brute force to be practical for the last mile of a proof. In a way, it's narrowing the solution as well (in # steps rather than space). There is one mathematics, and it's everywhere! Jan 9 awarded Critic Dec 15 awarded Popular Question