Leonardo da Pisa, known to us as Leonardo Fibonacci, was born in Pisa in 1175. The nickname "Fibonacci" came from "Filius Bonacci" (son of Bonacci). Fibonacci also sometimes used the name Bigollo, which means good-for-nothing or a traveler. Fibonacci was educated in mathematics by Arab masters while his father, Guilielmo Bonacci, held a diplomatic post in northern Africa. His father's job was to represent the merchants of the Republic of Pisa since it was in a …showed first 75 words of 653 total…

…showed last 75 words of 653 total…The star that is used in many nations' flags is a product of that ratio. But Fibonacci numbers also appear in nature. For example, the spiral arrangement of seeds in a sunflower is actually a Fibonacci number of spirals. Other flowers including daises often have a Fibonacci number of petals (34, 55, or 89 petals). The rabbit breeding problem is also an example of using the Fibonacci numbers. <Tab/> <Tab/>