Fibonacci

From Wikipedia, the free encyclopedia

For the number sequence, see Fibonacci number. For the Prison Break character, see Otto Fibonacci.

Fibonacci
Portrait by unknown artist
Born	c. 1170
Died	c. 1250 (aged around 80)
Nationality	Italian
Fields	Mathematician
Known for	Fibonacci number Fibonacci prime Brahmagupta–Fibonacci identity Fibonacci polynomials Fibonacci pseudoprime Fibonacci word Reciprocal Fibonacci constant Introduction of digital notation to Europe Pisano period Practical number

Leonardo Pisano Bigollo (c. 1170 – c. 1250)^[1] also known as Leonardo of Pisa, Leonardo Pisano, Leonardo Bonacci, Leonardo Fibonacci, or, most commonly, simply Fibonacci, was an Italian mathematician, considered by some "the most talented western mathematician of the Middle Ages."^[2]
Fibonacci is best known to the modern world for ^[3] the spreading of the Hindu-Arabic numeral system in Europe, primarily through the publication in the early 13th century of his Book of Calculation, the Liber Abaci; and for a number sequence named after him known as the Fibonacci numbers, which he did not discover but used as an example in the Liber Abaci.^[4]