Tag Archives: 2-D

http://video.ted.com/assets/player/swf/EmbedPlayer.swf rats’ brains, and presumably ours, tessellate the plane surface we walk on with multiple overlapping triangular grids (is there a mathematical reason triangles are optimal? euler characteristic, perhaps?) “path” neurons in the hippocampus fire as we cross these grids … Continue reading

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How to multiply matrices

This is for my homies in math class. Mathematical matrices are blocks of numbers, arrayed in 2-D. (Higher-dimensional arrays are called tensors.) Left “times” right equals target. Each entry in the target is the result of a series of +’s … Continue reading

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quasiperiodic tilings from a 15th-century Uzbekistani madrasa Yeah, the same quasiperiodic tilings that theoretical physicist Roger Penrose wrote about in the 20th century. The same quasiperiodic tilings that Tony Robbin says are the projections of a high-dimensional cubic lattice onto 2-D. … Continue reading

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