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Mathematica apprentice

My gravatar was made with the following Mathematica code:

Graphics3D[{
  GrayLevel[.3], Specularity[White, 15],
  Lighting -> {{"Directional", 
     RGBColor[.3, .3, .4], {{5, 5, 10}, {5, 5, 0}}},
    {"Point", Black, {12, 3, 15}},  
    {"Point", White, {12, 3, 4}}},
  KnotData[{"TorusKnot", {2, 5}}, "ImageData"]}, 
 ViewVector -> {{0, 0, 5}, {0, 0, 0}}, Boxed -> False, 
 Background -> None, Axes -> False, ImageSize -> 1000]

Dec
14
comment What are the limits of the Prime-functions?
Try here
Dec
14
revised Call Haskell from Mathematica and return the results inside Mathematica
Title spelling
Dec
14
revised Suppress warnings in ParallelTable
title spelling
Dec
14
revised Numerical instability in cosh and sinh - integral functions
title spelling and copyedits
Dec
12
comment Why does not BarLegend accept user-defined color function?
Does cf = Function[z, RGBColor[RandomReal[z, 3]]] work better?
Dec
11
awarded  Nice Answer
Dec
11
comment How to plot contours in the faces of a cube
@Silvia Yes indeed! But the OP probably has functions in mind which might need adjusting in various ways that we know little of...
Dec
11
revised How to plot contours in the faces of a cube
formatting
Dec
11
revised How to plot contours in the faces of a cube
added explanation
Dec
11
revised How to plot contours in the faces of a cube
forgot the legend
Dec
11
answered How to plot contours in the faces of a cube
Dec
10
comment Get brief help for a set of functions
Well spotted! Not mentioned in "Details and Options", but tucked away in "Options" anyway; it's always worth double-checking... :)
Dec
10
comment Get brief help for a set of functions
Information[#] & /@ {Map, Function} isn't quite what you're looking for...
Dec
6
revised How to graph in Cylindrical coordinates in 3D
added manipulate
Dec
4
comment Removing the edge features of an image while enhancing internal connectors
+1 nice answer. Leaves nothing for anyone else to do... :)
Dec
1
awarded  Notable Question
Dec
1
comment Mesh and ParametricPlot
I don't think this is documented - I can't find it myself. There are a lot of undocumented things in Mathematica - it wouldn't be so much fun if everything was documented... :)
Dec
1
comment Mesh and ParametricPlot
Try Show[Graphics[{}, Method -> {"TransparentPolygonMesh" -> True} ], ParametricPlot[a {Cos[t], Sin[t]}, {a, 1, 2}, {t, 0, 2 Pi}, Mesh -> None, PlotStyle -> Opacity[0.2]]] - see this Q&A for more...
Nov
30
comment Cut out circle out of circle
In the November 2011 video referenced in the linked question in Kuba's comment above, Chris Carlson refers to the forthcoming Mathematica version 9 release as containing "polygon boolean operations, differences, unions, intersections, and so forth ...". So there's a possibility that in version 10 there may be a debugged and reliable set of geometry Boolean functions... :)
Nov
29
revised Is there an equivalent to MATLAB's linspace?
title edits