Leonardo Pisano, nicknamed Fibonacci, was an Italian mathematician born in Pisa in the year 1170. His father Guglielmo Bonaccio worked at a trading post in Bugia, now called Béjaïa, a Mediterranean port in northeastern Algeria. The young Leonardo studied mathematics in Bugia and during extensive travels, he learned about the advantages of the Hindu-Arabic numeral system. In 1202, after returning to Italy, Fibonacci documented what he had learned in the "Liber Abaci" ("Book of Abacus"). In doing so, he popularized the use of Hindu-Arabic numerals in Europe.
The Fibonacci Number Sequence
In the "Liber Abaci," Fibonacci described the numerical series now named after him. In the Fibonacci sequence of numbers, after 0 and 1, each number is...