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Chapter 9
Book of Calculation
by Fibonacci
Leonardo Pisano Bigollo (c. 1170–c. 1250), also known as Fibonacci, was
born in Pisa, Italy. He is best known as the author of Liber Abaci (Book of
Calculation) (the rst edition was published in 1202 and the second edition
was published in 1228) [5]. Liber Abaci was one of the most important books
on mathematics in the Middle Ages, introducing the Hindu numeral sys-
tem (also called Hindu-Arabic numeral system or Indian-Arabic numeral
system) and arithmetic methods throughout Europe [1, 2, 4, 7]. He is also
well known for introducing a number sequence called Fibonacci’s num-
bers (also called the