by Keith Devlin
by Keith Devlin and Gary, Ph.D. Lorden
A page from the Liber Abaci manuscript. Leonardo da Pisa wrote symbolic calculations in the margin to illustrate the methods described in the text. Click Here For A Closer Look
Siena Public Library
July 16, 2011 In 1202 Leonardo da Pisa (aka Fibonacci) taught Western Europe how to do arithmetic with Arabic numerals. In Man of Numbers: Fibonacci's Arithmetic Revolution, Keith Devlin describes how basic arithmetic changed commerce, banking, science and technology.
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October 5, 2007 Mathematics may seem like an unusual tool to catch criminals, but real math and actual events inspire the CBS crime drama Numb3rs. Guests discuss the intersection of math-based crime solving and prime-time television.
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