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visits member for 1 year, 4 months
seen Apr 13 at 0:55

Apr
11
comment Number of paths in a grid
@WouterM. I'm now not sure that the number I generated was correct, it may have been an error in my code that i used to count the number of paths. Gerry - I think the oeis link you posted is exactly what I was looking for. Let me get back to my code and check it again.
Apr
9
asked Number of paths in a grid
Mar
22
comment Economics - Function satisfying two conditions
I've been trying to construct a function where $x_{1, opt}$ and $x_{2, opt}$ do not scale in the same way. I haven't been successful in finding one when trying separable functions $f(x_1, x_2) = g(x_1) + h(x_2)$.
Mar
22
asked Economics - Function satisfying two conditions
Mar
11
comment Setting every $k^{th}$ bit of a number to zero
Thanks! I was slightly confused by the initial solution :)
Mar
11
comment Setting every $k^{th}$ bit of a number to zero
I didn't know about enough about bitwise operators to realize that they could be used here; furthermore, I was writing a proof where I required this operation, and I thought that expressing this in standard number-theoretic terms would be clearer for the reader, since my proof is targeted at people without a computer programming background. (Aesthetically, it would also be great too.)
Mar
11
comment Setting every $k^{th}$ bit of a number to zero
Hey there, doesn't this set $a_i$ to 0 for all $i>k$? I don't see how it maintains the information needed.
Mar
9
comment Setting every $k^{th}$ bit of a number to zero
I was looking for a concise expression of the operation in standard number-theoretic symbols; I'm still hoping that it exists!
Mar
9
asked Setting every $k^{th}$ bit of a number to zero
Mar
8
asked Expected longest list in a Hash Table
Mar
6
accepted Expected value of square of number of randomly distributed elements
Mar
6
comment Expected value of square of number of randomly distributed elements
Thanks! In this case, are we allowed to use the fact that the expectation of a sum is the sum of the expectations because the sum is symmetric in terms of $x_i$? My initial instinct was that the value of $x_1$ would affect the distribution of the values of $x_2, \ldots, x_n$ but I realize this probably shouldn't be the case.
Mar
6
comment Expected value of square of number of randomly distributed elements
If anyone can think of a more descriptive title, please suggest one! I can't think of a good one at this moment.
Mar
6
asked Expected value of square of number of randomly distributed elements
Feb
25
awarded  Revival
Feb
22
awarded  Nice Question
Dec
8
awarded  Yearling
Nov
13
accepted Number of couples sitting at same table
Nov
9
comment Number of couples sitting at same table
Hi Will - I read through your proof and think that it works! Will get a few other people to read through this to verify it before accepting it as the answer.
Nov
9
comment What Mathematics questions can be better solved with concepts from Physics?
That's really interesting! I can't think for the life of me why primes and quantum energy should be related, though :)