274 reputation
113
bio website gplus.to/m0nhawk
location Kiev, Ukraine
age 21
visits member for 8 months
seen 15 hours ago
stats profile views 26

Tireless seeker of knowledge, purveyor of wisdom, independent software developer and a scientist.

Interests:

  • Programming languages: C/C++, Python, Haskell;
  • Design: infographics & data visualization, fonts, TeX, Processing;
  • Science: mathematics, physics, computer science;
  • OS: Linux and Linux, oh!, I forget about Linux! and Windows.

Jan
26
awarded  Teacher
Jan
26
answered How to convert a hex color string to RGBColor?
Jan
26
suggested suggested edit on How to convert a hex color string to RGBColor?
Jan
21
comment A triple sum related question
@Chris'ssister: Just N[<expression>, <number of digits>]. And, are you sure summation over j and k is done from i + 1 and j + 1? This sum: Sum[1/(i! j! k!), {i, 1, Infinity}, {j, 1, Infinity}, {k, 1, Infinity}] equals to (e - 1)^3.
Jan
21
comment A triple sum related question
@Chris'ssister: 1. It was just an assumption why it does not compute nothing. 2. That a function that gives the numerical value of expression, see N.
Jan
21
comment A triple sum related question
Maybe because it does not have an exact values in terms of $\pi$, $e$ and other known constants or functions. N[Sum[1/(i! j! k!), {i, 1, Infinity}, {j, i + 1, Infinity}, {k, j + 1, Infinity}]] computes fine and returns 0.122759.
Jan
11
awarded  Enthusiast
Jan
4
accepted Calculating error of the approximate formula in calculations
Dec
16
revised How to prepare data for ListVectorPlot[]?
fixed formatting
Dec
16
suggested suggested edit on How to prepare data for ListVectorPlot[]?
Nov
25
comment Calculating error of the approximate formula in calculations
I've updated the question. I think this is now much easier to understand.
Nov
25
revised Calculating error of the approximate formula in calculations
added 407 characters in body
Nov
25
asked Calculating error of the approximate formula in calculations
Nov
22
awarded  Custodian
Nov
22
reviewed Reviewed Problem with function as an argument
Nov
11
awarded  Scholar
Nov
11
accepted Plotting $\omega(k_x, k_z)$ in $(\omega, k)$ plane with assumption of $k^2 = k_x^2 + k_z^2$
Oct
29
comment Plotting $\omega(k_x, k_z)$ in $(\omega, k)$ plane with assumption of $k^2 = k_x^2 + k_z^2$
I've updated the question, if it isn't clear enough now - I will update further.
Oct
29
revised Plotting $\omega(k_x, k_z)$ in $(\omega, k)$ plane with assumption of $k^2 = k_x^2 + k_z^2$
make title better
Oct
29
awarded  Editor