Answers for "fibonacci series in python using function"

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))  # 8

fibonacci series in python

~~ This is the best Fibonacci sequence generator as you have all the option that 
till what number should this go on for ~~
  
a = 0
b = 1
f = 1
n = int(input("Till what number would you like to see the fibonacci sequence: "))
while b <= n:
    f = a+b
    a = b
    b = f
    print(a)

fibonacci series in python

#Recursive fibonnaci series
def fib(n,arr):
    if n == 0 or n == 1:
        return 1 
    else:
        arr.append(fib(n-1,arr) + fib(n-2,arr))
        return fib(n-1,arr) + fib(n-2,arr)
        
n = 10
arr = [1, 1]
print(fib(n-1,arr))
bl = set(arr)
bb = list(bl)
bb.sort()
print([1] + bb)

fibonacci series in python

#Recursive Solutions
def fibo(n):
  if n<=1: return 1
  return fibo(n-1)+fibo(n-2)

fibo(5)
#OUTPUT:
#120

fibonacci series in python

Fibonacci_input = int(input("Need Terms please give it: "))
num1 =0
num2 = 1
count = 0
go_india = True
while go_india:
   
   if Fibonacci_input <= 0:
      print("Please enter a positive integer")
   elif Fibonacci_input == 1:
      print("Fibonacci sequence is more than",Fibonacci_input,":")
      print(num1)
   elif Fibonacci_input > 1:
      print("Fibonacci sequence:")
      while count < Fibonacci_input:
         print(num1)
         nth = num1 + num2
      
         num1 = num2
         num2 = nth
         count += 1
   else:
      print('incorrect input')
   
   User_think = input('Do you want to cotinue? write "1 or one" if you want to continue or "2 or two" to exit: ').upper()
   if User_think == 1 or "ONE":
         User_think == True
   elif User_think == 2 or 'TWO':
      go_india == False
      
      print('thanks for using me')
   else:
      print('wront input closing the software')
      go_india == False

fibonacci series in python

# Program to display the Fibonacci sequence up to n-th term

nterms = int(input("How many terms? "))

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

# check if the number of terms is valid
if nterms <= 0:
   print("Please enter a positive integer")
elif nterms == 1:
   print("Fibonacci sequence upto",nterms,":")
   print(n1)
else:
   print("Fibonacci sequence:")
   while count < nterms:
       print(n1)
       nth = n1 + n2
       # update values
       n1 = n2
       n2 = nth
       count += 1