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# Python Program to Print the Fibonacci Series

###### Tutorialsrack 22/04/2020 Python

In this Python program, we will learn how to print the Fibonacci series.

## What is the Fibonacci Series?

In mathematics, the Fibonacci numbers, commonly denoted Fn form a sequence, called the Fibonacci sequence, such that each number is the sum of the two preceding ones, starting from 0 and 1. That is,

F0=0 and F1=1

And

Fn=Fn-1 + Fn-2

Examples of Fibonacci Series are 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 and so on.

Here is the source code to print the Fibonacci series.

##### Python Program to Print the Fibonacci Series
``````# Python Program to Print the Fibonacci Series

# Fibonacci series will start at 0 and travel upto below number
num = int(input("Enter the Range Number: "))

# first two terms
n1, n2 = 0, 1
count = 0

# check if the number of terms is valid
if num <= 0:
elif num == 1:
print("Fibonacci sequence upto",num,":")
print(n1)
else:
print("Fibonacci sequence:")
while count < num:
print(n1)
nth = n1 + n2
# update values
n1 = n2
n2 = nth
count += 1
``````
##### Output

Enter the Range Number: 10

Fibonacci sequence:

0

1

1

2

3

5

8

13

21

34