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832
bio website astrocrash.net
location Cambridge, MA
age 30
visits member for 2 years
seen yesterday

Postdoc at Harvard.


1d
awarded  Nice Question
Apr
16
accepted Limit as n -> ∞ for RSolve with Multivariate Recurrence Relation
Apr
15
revised Limit as n -> ∞ for RSolve with Multivariate Recurrence Relation
Modified in response to hftf's comment.
Apr
15
comment Limit as n -> ∞ for RSolve with Multivariate Recurrence Relation
@DanielLichtblau I tried, but the two Sums remain, regardless of the assumptions. The best I was able to do is get rid of the UnitStep[n-1] from the numerators when assuming n >= 1.
Apr
15
comment Limit as n -> ∞ for RSolve with Multivariate Recurrence Relation
@hftf ...yes, haha. So I guess the answer is just (1/y)/(1/y + 1/x) for a[n]? But how to find that from RSolve...
Apr
15
asked Limit as n -> ∞ for RSolve with Multivariate Recurrence Relation
Mar
25
comment Constructing election cartograms?
@shrx Great, thanks!
Mar
22
awarded  Yearling
Mar
21
comment Transferring a large amount of data in parallel calculations
I must say that the "speed-up" from doing things in parallel here, even after the fix, is pretty lackluster. 3.5 seconds to 3.0 seconds? I imagine the speed up would even be worse if one tried to do 4 or 8 kernels...
Mar
20
comment ListPlot with each point a different color and a legend bar
The plotting here is tremendously faster than the accepted answer, FYI.
Mar
5
awarded  Popular Question
Feb
6
awarded  Custodian
Jan
29
comment Hardware Performance Metrics for Mathematica
Guess I'll add mine: pastebin.com/vfcwLh6W. iMac Quad-Core 3.5 Ghz i7, 32 GB 1600MHz DDR3, 3 TB Fusion drive.
Dec
4
awarded  Popular Question
Oct
25
comment Esc-esc for special characters and autocomplete in Mathematica 9
@MikeLimaOscar Thanks, I guess I assumed an option like that would have been buried somewhere. A delay of about a half second seems to be a good balance.
Oct
24
comment Esc-esc for special characters and autocomplete in Mathematica 9
@MikeLimaOscar That sounds like an excellent solution, what is the option name?
Oct
24
revised Esc-esc for special characters and autocomplete in Mathematica 9
added 208 characters in body
Oct
24
asked Esc-esc for special characters and autocomplete in Mathematica 9
Oct
23
awarded  Popular Question
Sep
25
awarded  Nice Question