Los funerales de la mama grande

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Among the European mathematicians of the Middle Ages, the greatest of all was undoubtedly Leonardo of Pisa, better known as Fibonacci, which means "son of Bonacci" (filius Bonacci).
Born in the cityof Pisa (now belonging to Italy) to 1170/1180, the city which was then a great commercial and economic center.
Despite being born in Pisa, as his father was an employee of a trading post establishedin Italian Bougie (Algeria) was where he moved with the young Leonardo to 1192 and where he received his first training in mathematics, by Muslim teachers. This wakes up in Leonardo's passion formathematics, which would accompany him throughout his life.
Since that time, and up to 1200 before returning to Pisa runs Provence, Sicily, Greece, Barbary, Syria and Egypt, whose trips can compare themethod of calculation of the people of his time, with the help of the abacus, and the new is transmitted by Al-Khwarizmi's Arabic numbering system composed of nine digits and zero.
Leonardo returnsto Pisa, about 1200, and during the next twenty years he worked in his own compositions mathematics. So in 1202 published the Liber abaci, which has come down to us a revised edition of 1228, dedicatedto a famous astrologer of the time.
His talent as a mathematician was extended by the Court, being invited by the Emperor Federico II to participate in a tournament organized by theemperor. Leonardo successfully resolved all the problems that were proposed by John of Palermo, court philosopher.
Other works of Fibonacci are Geometrian Practice, published around 1220, which contains an extensivecollection of geometry and trigonometry; Quadratorum Liber, 1225, they approached the cube roots getting an answer in decimal notation is correct to nine digits, possibly his best work, whichaccording Targioni existed even in 1768 a copy in the library of the Hospital of Santa Maria Novella, and commented on Book X of Euclid's Elements.
After 1228 little or nothing is known about Leonardo's...
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