Question

Write a python script to print Fibonacci series first 20 elements

Answer 1

A python script to print Fibonacci series first 20 elements:

numterms = int(input("How many terms? "))  #to get number of terms at run time

# Initialize the first two terms

num1 = 0

num2 = 1

cntt = 0

if numterms <= 0:

  print("Enter only a positive integer")

elif numterms == 1:

  print("Fibonacci sequence upto",numterms,":")

  print(num1)

else:

  print("Fibonacci sequence upto",numterms,":")

  while count < numterms:

      print(num1,end=' , ')

      nth = num1 + num2

      num1 = num2

      num2 = nth

      cntt += 1

Answer 2

Answer:

Fibonacci Sequence of first 20 elements

Explanation:

first=0

second=1

print(first)

print(second)

for a in range(1,19):

   third=first+second

   print(third)

   first,second=second,third