What is a Fibonacci number?

35 0 1
                                    

In mathematics, the Fibonacci numbers are numbers found in the sequence:

1 , 1 , 2 , 3 , 5 , 8....(I shall write a few of the Fibonacci numbers in a separate chapter)

By defnition, the first 2 numbers in the Fibonacci sequence are 1 and 1 , depending on the chosen starting point and each subsequent number is the sum of the previous 2.

To better understand:

1 + 1 = 2 ;  1 + 2 = 3 ; 2 + 3 = 5.

You take the second number from the addition and add to it the result and so on and so on.

The sequence can be defined by the following relation:

F(n) = F(n-1) + F(n-2) where F(1) = 1 and F(2) = 1;

The sequence is named after the one who created it: Fibonacci who introduced the Indian-Arabic numeric system(Else, you would probably write math like this: IV - III = I).The sequence is related to the golden ratio(I will write a separate book and explain what a golden ratio(or spiral) is and the connection with the Fibonacci sequence.) and can be found in nature(Yes, in nature) like leaves or the fruitlets of a pineapple.You may search more about this on the internet as there are a lot of articles about it.

In the next chapter I will write a few Fibonacci numbers.

Fibonacci NumbersWhere stories live. Discover now