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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 $\prod_{j=1}^n \frac{k_j}{k_j+i\omega}$
Jun
15
accepted Limit on a spiral
Jun
15
comment Limit on a spiral
@oen What is it supposed to mean?
Jun
15
comment Limit on a spiral
@oen Morally? Is that an autocomplete error?
Jun
15
comment Does p(a,b,c)=p(a,b)p(a,c) hold when b and c are independent?
No, keep it, it's a perfectly good question.
Jun
15
awarded  Informed
Jun
15
comment Limit on a spiral
What do you mean partial limit, do you have a link?
Jun
15
answered devising a code for five symbols
Jun
15
comment devising a code for five symbols
indeed, but it is shorter, and the shortest with $p(A)\gg p(B) \gg p(C) ...$
Jun
15
comment Limit on a spiral
This leads me to think $\{1,-1\}$ should be excluded. Though $\lim_{x\to\pm\infty} \coth x = \pm1$, is probably why it should be included.
Jun
15
comment devising a code for five symbols
E should be 1111 not 11110 - you dont need a "stop" character as it is implicit when you have enough 1s
Jun
15
asked Limit on a spiral
Jun
15
comment Solving for $x$: $1=\frac{1}{x}+\frac{1}{1+\frac{1}{x}}+\frac{1}{1+\frac{1}{1+\frac{1}{x}}}+\cdots$
I did, it just seems more difficult to do, and worse look and interact with.