Answer to Question #3371 in Python for mukunda

Question

Write a Fibonacci program in python using recursive function and looping method.

Answer 1

def fibonacci_recursive (n):
if n == 0: return 0
elif n == 1: return 1
return fibonacci_recursive(n-1) + fibonacci_recursive(n-2)

def fibonacci_iterative (n):
if n == 0: return 0
elif n == 1: return 1

prelast, last = 0, 1
for i in range(n-1):
& new = prelast + last
& prelast, last = last, new

return new

print(fibonacci_recursive(7))
print(fibonacci_iterative(7))