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visits member for 2 years, 9 months
seen Jun 24 '13 at 0:02

No, his mind is not for rent
to any god or government.
Always hopeful, yet discontent.
He knows changes aren't permanent,
but change is.

— Rush, Tom Sawyer


Taking an externally-imposed and much-needed break from SE activities.

E-mail (flipped ROT13): zqd˙ʎʌuzʇ@ʇɐʌǝɥʇʌssqɹǝɥɟuɹʎɔ
Any code I've posted here I place under the WTFPL.


Sep
10
revised How to write a UTF-8 file?
added 2 characters in body; edited title
Sep
10
revised CustomTicks and ListPlot - Can't seem to get them working
added 2 characters in body
Sep
10
comment wrong use of _?NumberQ?
What happens if you replace NumberQ with NumericQ?
Sep
10
revised Fast Spherical Linear Interpolation of list of quaternions
added complete implementation
Sep
10
revised Is Mathematica matrix multiplication with its inverse wrong?
edited tags
Sep
10
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...
Sep
9
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...
Sep
9
answered Fast Spherical Linear Interpolation of list of quaternions
Sep
9
revised Ordering problem
deleted 1 characters in body
Sep
9
revised Ordering problem
deleted 3 characters in body
Sep
9
revised Ordering problem
deleted 4 characters in body; edited tags
Sep
9
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.
Sep
9
revised How do I find an equilateral triangle whose vertices have integer coordinates?
edited tags
Sep
9
revised How can I solve the equation with integers as a solution?
deleted 1 characters in body
Sep
9
revised On generalizing Partition[] (with offsets) to sublists of unequal length
slight generalization
Sep
9
reviewed Edit suggested edit on First evaluation fails
Sep
9
revised First evaluation fails
added 13 characters in body
Sep
9
revised How to add a short wav music clip into a Mathematica animation
edited tags
Sep
9
revised How to Solve or LinearSolve $A = I$ matrix equation?
edited tags
Sep
8
revised Trying to calculate a sum within a module - why is the iterator not creating integers?
edited tags