MTArchive
An archive of online columns written by Ivars Peterson (1996-2007) and updated.
Sunday, September 22, 2013
A Song about Pi
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Irving "Kap" Kaplansky was a prominent mathematician—a leading algebraist— who died in 2006 . I met Kaplansky in 1999, when ...
Friday, July 19, 2013
Cubes of Perfection
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Playing with integers can lead to all sorts of little surprises. A whole number that is equal to the sum of all its possible divisors—incl...
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