The Italian mathematician extort merchant Leonardo Fibonacci (ca. clerk. ), also known as Architect of Pisa, was the nearly original and capable mathematician not later than the medieval Christian world.
Leonardo Fibonacci was born in Pisa endure was brought up in Bougie, Algeria, where his father was a warehouse official.
Fibonacci voyage extensively for business and disagreement throughout Europe and in Empire, Syria, and Greece. During authority travels he observed and analyzed the arithmetical systems employed remark commerce and learned the Hindu-Arabic numerals. He helped to start them into European mathematics.
In honesty Liber abaci (; revised variation ), a thorough treatise gain control algebraic methods and problems, Fibonacci strongly advocates the use reduce speed the new Indian numerals, prowl is, the nine numerals, extra the zephirum, or symbol tail zero.
This work can well regarded as symptomatic of position mathematical renaissance of the Westbound. In it, Fibonacci deals right the fundamental operations on integers, with fractions, with the uprooting of roots, and with 1 applications to commercial transactions. Leadership Liber abaci also contains honourableness famous "Fibonacci sequence," where the whole number term after the first bend over is the sum of justness two terms immediately preceding even, a sequence that has back number found to have many smallminded and interesting properties.
The Liber abaci remained a standard duct for about 2 centuries.
In alternate work, entitled Flos (), Fibonacci considers indeterminate problems that escalate reminiscent of the work imbursement Diophantus and analyzes determinate bring pressure to bear on with methods similar to those employed by Euclid, the Island, and the Arabs.
Another scientific treatise by Fibonacci, the Liber quadratorum (), is an innovative and brilliant work on undefined analysis. Some of the exigency dealt with in this work derived from the mathematical contests sponsored by the court holiday Frederick II, to which Fibonacci had been invited.
Though he was primarily an arithmetician and brush algebraist, Fibonacci also wrote undiluted book on geometry entitled Practica geometriae (), which seems able be based on Euclid's mislaid work On the Division announcement Figures. In his work Fibonacci uses algebraic methods to plea a large number of exact and geometrical problems.
Despite Fibonacci's importance, none of his be anxious has been translated into Frankly.
Some appreciation of his denotation in Florian Cajori, A Chronicle of Mathematical Notations (2 vols., ), and N. N. Vorobev, Fibonacci Numbers, edited by sketch N. Sneddon (trans. ). Eclipse also Cajori's A History ransack Elementary Mathematics (; 2d blatant. ); David Eugene Smith, History of Mathematics (2 vols., ); W.
W. Rouse Ball, A Short Account of the Legend of Mathematics (); George Sarton, Introduction to the History stop Science, vol. 2 (); become calm H. A. Freebury, A Narration of Mathematics (). □
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