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Jun
22
comment Variance of random variable
@Did Nope, I would not be so bold. There are plenty of answers that expect you would describe as being without proofs here, the custom is not only to write proofs. I'd defend your right to think and say it should be otherwise, but personally I like them, as do others.
Jun
22
comment Variance of random variable
@Did And no request for a proof, or claim of being one was made (though I would consider it a sketch). I was simply asking why you insistently pointed this out. I am, however, totally "evading" your "request for explanation" after last time: it's ingenuous. If you're just annoyed that the informal answer got accepted, don't wrap it up in a pretension of understanding. If you really are trying to understand I would suggest you ask something more directed, like "I find it hard to understand how part $X$ can be written more formally, as I think you may run into difficulties with aspect $Y$".
Jun
21
comment Variance of random variable
@Did Are you saying that one or more of those statements are false? Or you just disapproving of the lack of symbols and/or details?
Jun
21
comment Variance of random variable
@Did it's around here somewhere.
Jun
21
revised Variance of random variable
added 33 characters in body
Jun
21
answered Variance of random variable
Jun
21
accepted The difference between inside and outside
Jun
21
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?
Jun
20
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.
Jun
20
comment The difference between inside and outside
@AsafKaragila My experience has been that neither of those are strictly true :P
Jun
20
asked The difference between inside and outside
Jun
18
comment possible prime factors of $4^{444}+3$
Just out of interest, how long would factoring a number like that take?
Jun
18
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 $f^{(n)}$.
Jun
18
comment What could be a homeomorphism from the circle to a triangle?
+1 Graphics are good :)
Jun
17
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?
Jun
17
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.
Jun
16
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.
Jun
16
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].
Jun
16
comment A question about scaling
Also, should it be $\Delta^2$ everywhere, you initially wrote $\Delta$?
Jun
16
comment A question about scaling
For the second equation, the function has differing numbers of arguments.