950 reputation
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bio website whereofonecannotspeak.wordpre…
location Brighton, United Kingdom
age
visits member for 2 years, 9 months
seen Jun 13 at 0:21

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.
Jun
16
answered Finding a unique representation as a linear combination
Jun
16
revised Sparse least-squares fitting of discrete probability distributions
added 42 characters in body
Jun
16
answered Sparse least-squares fitting of discrete probability distributions
Jun
16
awarded  Organizer
Jun
16
revised devising a code for five symbols
added 78 characters in body
Jun
15
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?
Jun
15
accepted Water Systems: When can I use buckets of water to simulate an ODE.
Jun
15
accepted Inverse Fourier Transform of $\prod_{j=1}^n \frac{k_j}{k_j+i\omega}$