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 Sep11 comment How to make a tight crop of a 3d plot? You've tried PlotRangePadding -> None and Method -> {"ShrinkWrap" -> True}? Sep11 comment export data points from differential equation system? No need to load that package, even, since it's just a front end for hidden built-in functionality. f["Coordinates"] (where f[] is the InterpolatingFunction[] object) does the job. Sep11 comment export data points from differential equation system? @kale ... because E and I are definitely not variables in Mathematica... ;) Sep11 revised Make a map of squares edited tags Sep11 revised The following code doesn't seem to work finding Chomatic Number of Undirected Graph in Mathematica(MathKernel) edited tags Sep10 comment Why don't I get numeric values from this Solve? I can't upvote again, but I like the scaly plot... looks like some exotic fish skeleton. :) Sep10 revised Mathematica for linear algebra course? deleted 8 characters in body Sep10 revised How to write a UTF-8 file? added 2 characters in body; edited title Sep10 revised CustomTicks and ListPlot - Can't seem to get them working added 2 characters in body Sep10 comment wrong use of _?NumberQ? What happens if you replace NumberQ with NumericQ? Sep10 revised Fast Spherical Linear Interpolation of list of quaternions added complete implementation Sep10 revised Is Mathematica matrix multiplication with its inverse wrong? edited tags Sep10 comment Is Mathematica matrix multiplication with its inverse wrong? The OP's confusion might be due to the fact that in MATLAB, * performs matrix multiplication, while .* performs Hadamard multiplication. In Mathematica, OTOH, * is Hadamard multiplication, while . is the operator for matrix multiplication. Common trip-up... Sep9 comment Fast Spherical Linear Interpolation of list of quaternions Take your time, then. I'll only be able to do experiments with the compiled version later... Sep9 answered Fast Spherical Linear Interpolation of list of quaternions Sep9 revised Ordering problem deleted 1 characters in body Sep9 revised Ordering problem deleted 3 characters in body Sep9 revised Ordering problem deleted 4 characters in body; edited tags Sep9 comment How do I find an equilateral triangle whose vertices have integer coordinates? See this math.SE question. As noted there, in 3D, you can have an equilateral triangle with integer coordinates (it is easy to construct an octahedron with integer coordinates, and its faces are equilateral triangles); in 2D, this is impossible. Sep9 revised How do I find an equilateral triangle whose vertices have integer coordinates? edited tags