Simple fibonacci series in python using range. In this program, we can execute the Fibonacci series in python using a given range by the users in python.
Fibonacci Series Definition
The Fibonacci sequence is a set of numbers in which each subsequent number is equal to the sum of the two numbers before it. The sequence starts with 0 and 1 and goes on indefinitely: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, and so on. Xn+2= Xn+1 + Xn is a mathematical equation that can be used to define the Fibonacci sequence.
A function is a piece of code that only executes when called. If a return statement is given, Python functions return a value. After a function has been declared, it can be invoked from anywhere.
For Loop Definition in Python
When you have a block of code that you want to repeat a certain number of times, you use a for a loop. The for the statement in Python iterates through the members of a sequence, executing the block each time.
Fibonacci Series in Python Using Range
import math def isfunc(x): s = int(math.sqrt(x)) return s*s == x def fib(n): return isfunc(5*n*n + 4) or isfunc(5*n*n - 4) for i in range(5,13): if (fib(i) == True): print (i," Fibonacci Number") else: print (i,"Not Fibonacci Number ")
5 Fibonacci Number
6 Not Fibonacci Number
7 Not Fibonacci Number
8 Fibonacci Number
9 Not Fibonacci Number
10 Not Fibonacci Number
11 Not Fibonacci Number
12 Not Fibonacci Number
13 Fibonacci Number