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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.


11h
comment numerical integration with parameter
Yes, it's impossible, it does not converge on $(0,y)$.
1d
comment Delete duplicates from list of pairs
@user3006690 I have no problem with DeleteDuplicatesBy[elms, First], where the elms is an uncompressed data.
1d
comment Delete duplicates from list of pairs
DeleteDuplicatesBy[elms, First] (elms is my simple list of pairs)... and it works. What you mean by "doesn't run"?
1d
comment Difference between NIntegrate and Integrate results
Can you also state the original problem in LaTeX with details on assumptions.
2d
comment What is the URL of the site used by ExampleData?
There is ExampleData Source Information.
2d
comment How can I plot a graph of an integral?
@Anixx I does work. What Mathematica version are you running?
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.
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.
Oct
21
comment What are the most common pitfalls awaiting new users?
Btw, this is called grawlixes.
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
1
comment What's the difference between this differentiation?
Oh, thanks. Didn't thought that the issue is in the (), not primes...
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.
Aug
26
comment Power::infy: error using FindFit
You don't understand what code you run... Can you just describe what you want to get? Width of peak? "Period"? Number of local maximums? I start to think that fitting this (also, this can be really looong... it's a non-linear fit for over 500k points) isn't a good idea.
Aug
26
comment Power::infy: error using FindFit
Can you provide all necessary code? That's not a good idea to people guess and ask what you mean...
Aug
26
comment Power::infy: error using FindFit
And how do you load the image?
Aug
26
comment Power::infy: error using FindFit
First of all, provide the Mathematica code.
Aug
24
comment Trying to solve simultaneous equations based on format found on official website
@DisplayName I just started in assumption that Mathematica is right and tried to prove there is no solution, but when found one - try to find, why Mathematica didn't found any.