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visits member for 3 years
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Code for my breathing avatar here


You may contact me at: BelisariusForSO@gmail.com

But please don't email me with requests about Q&A. Post them in the site instead.

Infix should be used only where it is essential... like in "feliz año nuevo" @rm-rf


Sep
8
comment How to ask Mathematica to imitate Andy Warhol's pop-art painting?
This one seems to be the original Marilyn s2.hubimg.com/u/4262573_f520.jpg
Sep
8
answered How to ask Mathematica to imitate Andy Warhol's pop-art painting?
Sep
8
revised Multiple ListLogLogPlot from two data sets
added 16 characters in body
Sep
8
comment Derivatives with respect to Cartesian coordinates of functions in spherical coordinates
You'll need at least a Coordinate Transform function. Yours isn't bad. Other ways of course exist: f[r_] := r; myD[f_, var_] := FullSimplify[ D[TransformedField[ "Spherical" -> "Cartesian", f@r, {r, \[Theta], \[CurlyPhi]} -> {x, y, z}], var] /. Thread[{x, y, z} -> CoordinateTransformData["Spherical" -> "Cartesian", "Mapping", {r, \[Theta], \[CurlyPhi]}]], Assumptions -> r > 0]
Sep
7
comment Filling the empty space in RevolutionPlot3D
@ubpdqn Thanks. The "nicer" part really depends on the plot range. Try using {x, 1/2, E} instead of {x, 1, E} and see by yourself.
Sep
7
comment Animated gif form parametric plot
Welcome to Mathematica.SE! I suggest the following: 1) As you receive help, try to give it too, by answering questions in your area of expertise. 2) Read the faq! 3) When you see good questions and answers, vote them up by clicking the gray triangles, because the credibility of the system is based on the reputation gained by users sharing their knowledge. Also, please remember to accept the answer, if any, that solves your problem, by clicking the checkmark sign!
Sep
7
answered How to make a cleaner copy out of a blurry text image before OCR?
Sep
7
answered How to obtain a function from a implicit equation?
Sep
7
answered Filling the empty space in RevolutionPlot3D
Sep
7
revised How to generate a blank crossword sheet?
deleted 26 characters in body
Sep
7
revised How to generate a blank crossword sheet?
added 9 characters in body
Sep
7
answered Apply Collatz Funtion to solve and print the answer
Sep
7
revised How to generate a blank crossword sheet?
added 225 characters in body
Sep
7
revised How to generate a blank crossword sheet?
deleted 164 characters in body
Sep
7
comment Why do I get Floor and Ceiling in my output despite my assumptions
Add Assumptions -> $Assumptions to your Sum[]
Sep
6
answered How to generate a blank crossword sheet?
Sep
5
revised Finding real roots for an eigth-degree polynomial
rolled back to a previous revision
Sep
5
revised Finding real roots for an eigth-degree polynomial
added 462 characters in body
Sep
5
comment Finding real roots for an eigth-degree polynomial
Do you think it has only two Real roots for any {L, A}?
Sep
5
revised Mathematica and gaps in continuous plot
added 51 characters in body