234 reputation
411
bio website walkytalky.net
location London, United Kingdom
age 47
visits member for 4 years, 1 month
seen Aug 21 '13 at 16:37
Erstwhile programmer turned experimental scientist. Now spend more time fiddling with cells and microscopes than coding, but still occasionally keep a hand in.

Feb
5
awarded  Yearling
Jun
8
awarded  Constituent
Jun
8
awarded  Caucus
Dec
7
comment Linear interpolation
@Aabaz you should post that as an answer
Dec
11
awarded  Quorum
Dec
9
awarded  Precognitive
Dec
2
comment What does -1.13 times faster mean?
How does that notion of direction make sense in terms of execution speed? I'm with @Skilldrick here -- the intended interpretation is probably -1.13 = 1/1.13 but basically the graph is wrong.
Oct
25
comment An occupancy problem
Might also be worth asking this on stats.SE -- not to suggest it's at all off-topic here, just to increase the number of possible answerers.
Oct
15
accepted Characterising a function involving the max and min of other functions
Oct
13
comment Characterising a function involving the max and min of other functions
Yes, that's exactly it. There's some physical rationale for that choice, but it's fairly dubious.
Oct
13
comment Characterising a function involving the max and min of other functions
Doubtless you are correct, but this identity becomes rapidly less useful with more functions. I think that part of the problem is that at any particular x only two functions contribute to the result, but exactly which two varies. I'm starting to suspect that only relatively trivial general predictions can be made and everything else will depend very closely on the exact functions involved.
Oct
13
asked Characterising a function involving the max and min of other functions
Oct
5
comment How do I apply a Gaussian Blur (low-pass filter) to an image made up from a set of points?
Although Justin's answer is phrased in terms of "pixels", what he describes is a 1d filter suitable for use on a list of values. You can apply such a filter to your X and Y values separately (considering the two dimensions as sampling independent functions of t) and the result will be a smoothed point list.
Aug
27
comment What is Modern Mathematics? Is this an exact concept with a clear meaning?
@J. Seems. But I'll admit it's close. And what's all this I'm hearing about a popular beat combo named after some kind of arthropod?
Aug
27
comment What is Modern Mathematics? Is this an exact concept with a clear meaning?
@Qiaochu Being "modern" is so old hat. Nowadays everyone wants to be "hip" or "groovy" or "with it" or "fab"...
Aug
26
answered Combine n Normal distribution Probability Sets in a limited float range
Aug
19
comment Why is $22/7$ a better approximation for $\pi$ than $3.14$?
You'd be constantly confused in supermarkets?
Aug
19
awarded  Enthusiast
Aug
17
comment Is there a simple test for uniform distributions?
The OP explicitly states that chi-square is too complicated, although that does seem a little like a counsel of despair...
Aug
17
answered probability and statistics: Does having little correlation imply independence?