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Fibonacci Number

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Fibonacci number [¦fib·ə¦nä·chē ′nəm·bər]
(mathematics)
A number in the Fibonacci sequence whose first two terms aref1=f2= 1.

Fibonacci Number 

any term in the recursive number sequence 1, 1, 2, 3, 5, 8,.... In this sequence, which is called a Fibonacci sequence, each term, after the second, is the sum of the two previous terms. Fibonacci numbers are named for the medieval mathematician Leonardo Fibonacci.

REFERENCE

Vorob’ev, N. N. Chisla Fibonachchi, 3rd ed. Moscow, 1969.


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The next Fibonacci number, 21, forecasts the next major low in April 2010 (21 months from the top).
Before we can understand why these ratios were chosen, we need to have a better understanding of the Fibonacci number series.
The Fibonacci number systems is a natural progression where the next number in the sequence is based on the preceeding two numbers, so the first five numbers are 1, 2 (1 + 1), 3, (1 + 2), 5 (3 + 2), 8 (5 + 3).
 
 
 
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