**Underwood Dudley** (born January 6, 1937) is an American mathematician and author, known for his popular books on mathematical topics such as numerology, circle-squaring and mathematical cranks.

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## QuotesEdit

- Historians often do not mention the truly important features of daily life, like games, concentrating instead on tedious political maneuvering.
*Numerology: Or, What Pythagoras Wrought*(MAA 1997, 10th edition), p. 148, ISBN 0-88385-524-0