Leonardo Pisano Fibonacci (1170–1240 or 1250) was an Italian number theorist. He introduced the world to such wide-ranging mathematical concepts as what is now known as the Arabic numbering system, the concept of square roots, number sequencing, and even math word problems. Fast Facts: Fax Lists Fibonacci, Leonardo Pisano Leonard of Pisa was a well-known Italian mathematician and number theorist who developed Fibonacci numbers and the Fibonacci Sequence. Born in the year 1170 in Pisa, Fax Lists Italy Father: Guglielmo Died: Probably between 1240 and 1250 in Pisa. North African education; studied mathematics in Bugia, Algeria. Liber Abaci (Book of Calculation), 1202 and 1228; Practica Fax Lists Geometriae (Book of Geometry), 1220; Liber Quadratorum (Book of Square Numbers),
Awards and Honors: The Republic of Pisa honored Fibonacci in 1240 for Fax Lists advising the city and its citizens on accounting issues. "If by chance I have omitted anything more or less proper or necessary, I beg forgiveness, since there is no one who is without fault and circumspect in all matters." Early Years and Education Fibonacci was born in Italy but obtained his education in North Africa. Fax Lists Very little is known about him or his family, and there are no photographs or drawings of him. Much of the information about Fibonacci has been gathered by his autobiographical notes, which he Fax Lists included in his books. Mathematical Contributions Fibonacci is considered to be one of the most talented mathematicians of the Middle Ages.
Few people realize that it was Fibonacci that gave the world the decimal Fax Lists number system (Hindu-Arabic numbering system), which replaced the Roman numeral system. When he Fax Lists was studying mathematics, he used the Hindu-Arabic (0–9) symbols instead of Roman symbols, which didn't have zeros and lacked place value. In fact, when using the Roman numeral system, an abacus Fax Lists was usually required. There is no doubt that Fibonacci saw the superiority of using the Hindu-Arabic system over the Roman Numerals. Liber Abaci In his book "Liber Abaci," which he published in 1202,