
Fibonacci numbers are a sequence of numbers starting with 0, 1. After the first two numbers, each number in the sequence is calculated by adding the two previous numbers. See table 1. Fibonacci numbers were first described in (asiatic) Indian mathematics. However, they are named after Leonardo de Pisa [c. 1170 – c. 1250] who introduced them to the western world in his book Liber Abaci (Book of Calculation). Leonardo de Pisa is also know as Fibonacci (son of Bonacci). The Fibonacci numbers have some interesting properties. Figure 1 shows a sequence of squares. The length of the side each square is one of the Fibonacci numbers. These squares form a rectangle that grows with each Fibonacci number. 

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