Leonardo Fibonacci

Leonardo Fibonacci was born in the late 12th century in Pisa, Italy.

His passion for mathematics was ignited, and he particularly liked the Hindu-Arabic numeral system. He took this system throughout Europe, and this is where the modern Western numerals of 0, 1, 2, 3, 4, 5, 6, 6, 7, 8 and 9 originate.

Fibonacci used the Fibonacci sequence in his book about the Hindu Arabic numeral system “Liber Abaci (Book of Calculation)”, as an example of how calculation works in nature.

In the Fibonacci sequence, each number is the sum of the previous two.

1 (1+0)
= 1 (1+1)
= 2 (2+1)
= 3 (3+2)
= 5 (5+3)
= 8 (8+5)
= 13… and so on.

The example gave rise to a “golden ratio” which is present in nature everywhere, and is commonly used by architects to create aesthetically pleasing designs. It is also used by Forex Traders when determining where the market will find support or resistance.

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