![]() ![]() Fibonacci’s sequence was first introduced to the western world in 1202 by Fibonacci, the sequence had been noted by Indian mathematicians as early as the sixth century. That has saved us all a lot of trouble! Thank you Leonardo.įibonacci Day is November 23rd, as it has the digits "1, 1, 2, 3" which is part of the sequence. The Fibonacci sequence is named after Leonardo of Pisa, who was known as Fibonacci (named after, he did not discover). "Fibonacci" was his nickname, which roughly means "Son of Bonacci".Īs well as being famous for the Fibonacci Sequence, he helped spread Hindu-Arabic Numerals (like our present numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9) through Europe in place of Roman Numerals (I, II, III, IV, V, etc). His real name was Leonardo Pisano Bogollo, and he lived between 11 in Italy. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted Fn. In mathematics, the Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones. Historyįibonacci was not the first to know about the sequence, it was known in India hundreds of years before! A tiling with squares whose side lengths are successive Fibonacci numbers: 1, 1, 2, 3, 5, 8, 13 and 21. Which says that term "−n" is equal to (−1) n+1 times term "n", and the value (−1) n+1 neatly makes the correct +1, −1, +1, −1. In fact the sequence below zero has the same numbers as the sequence above zero, except they follow a +-+. (Prove to yourself that each number is found by adding up the two numbers before it!) ![]()
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