Lucas
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 Jun21 comment Sparse least-squares fitting of discrete probability distributions Yeah, well I guess all I was saying is give it a go with whatever package you have to hand. The old do first optimise later maxim. That's been my experience with these things, though not a great answer admittedly. Perhaps someone can do better, maybe on cs.SE or the scientific computing one? Have you estimated how long it will take with standard algorithms? Jun20 comment The difference between inside and outside @Avitus continuity yes, bijective yes, $C^\infty$ not so sure. I was interested in what fundamentally differentiates inside and outside, $f$ was supposed to be illustrative rather than a formal definition. Jun20 comment The difference between inside and outside @AsafKaragila My experience has been that neither of those are strictly true :P Jun20 asked The difference between inside and outside Jun18 comment possible prime factors of $4^{444}+3$ Just out of interest, how long would factoring a number like that take? Jun18 comment Is the statement true? I really don't see what the problem with the notation is. It's pretty standard. e.g. $\sin^2 x + \cos^2 x = 1$. It's also the usual for writing the $n$'th derivative as $f^{(n)}$. Jun18 comment What could be a homeomorphism from the circle to a triangle? +1 Graphics are good :) Jun17 comment Comparing uniform priors It doesn't mean that, as they are densities, and densities with respect to different measures. Try this excercise, imagine the the $n$-sphere has a radius 1 meter, what are the units of $\pi(\Theta_{q})$? what are the units of your ratio? Jun17 comment Comparing uniform priors This seems to have everything to do with geometry and very little to do with probability. I'm intrigued as to where your teacher is going with this. Do let me know when you find out. Jun16 comment A question about scaling o_O I'm quite confused. Perhaps you could add a little context, in most other situations where the form $f(x,y)$ denotes a function $X\times Y\rightarrow Z$, $f(x)$ denotes a completely different type of function $X\rightarrow Z$. Explaining things expressed in unconventional notation requires additional context from which to deduce the meaning of the notation. Jun16 comment Is there a rational number between any two irrationals? @BlueRaja-DannyPflughoeft yeah, I thought that, then I read the [bit in brackets in the question]. Jun16 comment A question about scaling Also, should it be $\Delta^2$ everywhere, you initially wrote $\Delta$? Jun16 comment A question about scaling For the second equation, the function has differing numbers of arguments. Jun16 answered Finding a unique representation as a linear combination Jun16 revised Sparse least-squares fitting of discrete probability distributions added 42 characters in body Jun16 answered Sparse least-squares fitting of discrete probability distributions Jun16 awarded Organizer Jun16 revised devising a code for five symbols added 78 characters in body Jun15 comment Is it correct that $\text{Cov}(X,Y) = \text{E}((X-\text{E}(X))Y)$? @MichaelHardy Is it well known because it's so ugly you can't forget it? Jun15 accepted Water Systems: When can I use buckets of water to simulate an ODE.