fibonacci, leonardo

Science Dictionary
Fibonacci   (fē'bə-nä'chē)  Pronunciation Key 
Italian mathematician who popularized the modern Arabic system of numerals in the western world and discovered the Fibonacci sequence of integers.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

fibonacci, leonardo

medieval Italian mathematician who wrote Liber abaci (1202; "Book of the Abacus"), the first European work on Indian and Arabian mathematics.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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