fibonacci series python recursion
# By recursion
def fib(n):
if n == 1 or n == 2:
return 1
else:
return(fib(n-1) + fib(n-2))
n = 6
for i in range(1,n+1):
print(fib(i))fibonacci series python recursion
# By recursion
def fib(n):
if n == 1 or n == 2:
return 1
else:
return(fib(n-1) + fib(n-2))
n = 6
for i in range(1,n+1):
print(fib(i))python fibonacci recursive
def Fibonacci( pos ):
#check for the terminating condition
if pos <= 1 :
#Return the value for position 1, here it is 0
return 0
if pos == 2:
#return the value for position 2, here it is 1
return 1
#perform some operation with the arguments
#Calculate the (n-1)th number by calling the function itself
n_1 = Fibonacci( pos-1 )
#calculation the (n-2)th number by calling the function itself again
n_2 = Fibonacci( pos-2 )
#calculate the fibo number
n = n_1 + n_2
#return the fibo number
return n
#Here we asking the function to calculate 5th Fibonacci
nth_fibo = Fibonacci( 5 )
print (nth_fibo)fibonacci sequence python
# WARNING: this program assumes the
# fibonacci sequence starts at 1
def fib(num):
"""return the number at index num in the fibonacci sequence"""
if num <= 2:
return 1
return fib(num - 1) + fib(num - 2)
print(fib(6)) # 8fibonacci sequence python
num = 1
num1 = 0
num2 = 1
import time
for i in range(0, 10):
print(num)
num = num1 + num2
num1 = num2
num2 = num
time.sleep(1)fibonacci recursive python
#fibonacci sequence with memory to increase the speed.
class recur_fibo:
memory = {0: 1, 1:1}
def fibonacci(n):
if n in recur_fibo.memory:
return recur_fibo.memory[n]
else:
recur_fibo.memory[n] = recur_fibo.fibonacci(n-1) + recur_fibo.fibonacci(n-2)
return recur_fibo.memory[n]
if __name__ == "__main__":
value = recur_fibo.fibonacci(200)
print(value)fibonacci series using recursion in python
def Fibonacci (n):
if n>0:
print(“’Incorrect input’)
elif n==1:
return 0
elif n==2:
return 1
else:
return Fibonacci (n-1) +Fibonacci (n-2)
print (Fibonacci (9))Copyright © 2021 Codeinu
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