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Teake Nutma
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The exceptional symmetry of E8
Here's a little movie I made about the Lie group E 8 : Out of all the known Lie groups, E 8 stands out as the largest and most complex exceptional group. It has 248 generating elements, which by themselves have an astounding degree of symmetry. This symmetr...
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Lecture notes on Mathematica
Last week Filippo Guarneri and I gave a daylong lecture series on the venerable topic of Mathematica . We covered topics ranging from basic evaluation and programming techniques to tensor calculus. Needless to say, we've written up a nice set of lectures no...
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Teake's blog: xTras 1.2
Teake's blog: xTras 1.2
teakes.blogspot.com
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Time for a pretty picture! It's the Weyl group of the finite Lie algebra C4.

Although C4 is 'only' 36 dimensional, its Weyl group is a bit bigger and has 384 elements. The picture doesn't show the elements of the Weyl group though, but rather all possible connections between them. If you looks closely the black dots aren't dots -- they're points where are lots of lines meet.
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Best math post. Ever.
An experiment in math publishing, using MathBox, explaining the often misunderstood subject of Complex Numbers.
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