fibonacci series python using function

1#Python program to generate Fibonacci series until 'n' value
2n = int(input("Enter the value of 'n': "))
3a = 0
4b = 1
5sum = 0
6count = 1
7print("Fibonacci Series: ", end = " ")
8while(count <= n):
9  print(sum, end = " ")
10  count += 1
11  a = b
12  b = sum
13  sum = a + b
14

1# Program to display the Fibonacci sequence up to n-th term
2
3nterms = int(input("How many terms? "))
4
5# first two terms
6n1, n2 = 0, 1
7count = 0
8
9# check if the number of terms is valid
10if nterms <= 0:
11   print("Please enter a positive integer")
12elif nterms == 1:
13   print("Fibonacci sequence upto",nterms,":")
14   print(n1)
15else:
16   print("Fibonacci sequence:")
17   while count < nterms:
18       print(n1)
19       nth = n1 + n2
20       # update values
21       n1 = n2
22       n2 = nth
23       count += 1

1# Program to display the Fibonacci sequence forever
2
3def fibonacci(i,j):
4  print(i;fibonacci(j,i+j))
5fibonacci(1,1)

1#Recursive Solutions
2def fibo(n):
3  if n<=1: return 1
4  return fibo(n-1)+fibo(n-2)
5
6fibo(5)
7#OUTPUT:
8#120

1#Learnprogramo
2Number = int(input("How many terms? "))
3# first two terms
4First_Value, Second_Value = 0, 1
5i = 0
6if Number <= 0:
7print("Please enter a positive integer")
8elif Number == 1:
9print("Fibonacci sequence upto",Number,":")
10print(First_Value)
11else:
12print("Fibonacci sequence:")
13while i < Number:
14print(First_Value)
15Next = First_Value + Second_Value
16# update values
17First_Value = Second_Value
18Second_Value = Next
19i += 1