866 reputation
420
bio website andrewpro.me
location
age 23
visits member for 2 years, 6 months
seen 11 hours ago

Data scientist with a PhD degree in Physics. Interested in new technologies in machine learning, Big Data and a present-day hardware (latest GPUs and parallel computing).

Author of the named blog on various science and technology related stuff.

Software engineer / Founder @ re:data consulting.


Mar
14
revised How to calculate the phase spectrum
improved equation formatting
Mar
14
suggested approved edit on How to calculate the phase spectrum
Mar
10
comment Using InterpolatingFunction in equations
No, because in Mathematica NDSolve, NSolve, Solve and other similar functions return the solutions in terms of replacement rules. So you need /. or introduced in Mathematica 10 *Value functions.
Mar
10
suggested rejected edit on Simplify complex answer given by DSolve[]
Mar
10
answered Using InterpolatingFunction in equations
Dec
4
comment Simplify integration result with conditions
@ELEC I'd recommend to read other answers too, so you can choose the one, that's suit you the most.
Dec
4
answered Simplify integration result with conditions
Oct
21
comment What are the most common pitfalls awaiting new users?
Btw, this is called grawlixes.
Sep
30
awarded  Explainer
Sep
19
accepted Understanding Dirichlet regularization in Sum
Sep
19
awarded  Yearling
Sep
11
comment Understanding Dirichlet regularization in Sum
Now's that's will equal to $(-1)^k S_l$. Maybe you missed something else?
Sep
11
comment Understanding Dirichlet regularization in Sum
So, $S_l = -1/12$? It didn't calculates well: Sum[-(1/12) Binomial[k, l], {l, 1, k}] /. {k -> 3}, am I missing something?
Sep
11
comment Understanding Dirichlet regularization in Sum
Can you expand a bit more about $S_l$? And that's a binomial coefficient, right?
Sep
11
comment Understanding Dirichlet regularization in Sum
Actually, after this article I tried this. I just can't understand what method Mathematica use; if we add zero, the Maclaurin series shouldn't change, but the answer is different.
Sep
11
asked Understanding Dirichlet regularization in Sum
Sep
1
comment What's the difference between this differentiation?
Oh, thanks. Didn't thought that the issue is in the (), not primes...
Sep
1
accepted What's the difference between this differentiation?
Sep
1
asked What's the difference between this differentiation?
Aug
26
comment Power::infy: error using FindFit
If you want just a rough width of center peak, why not to use something like this: Manipulate[ Show[Rasterize[image], Graphics@{Red, Circle[p, r]}], {{p, {390, 270}}, Locator}, {r, 50, 100}]? It's just allows you to set width and position on eye.