Python Develop a program that takes a positive integer input and calculates thre

Question

Python

Develop a program that takes a positive integer input and calculates three things:

1. The sum of all integers from 1 up to and including the input integer.

2. The factorial of the input integer.

3. Use the integer to calculate that number in the Fibonacci sequence listed above.

I have no idea how to begin to calculate the factora and fibonacci section of this. Has anyone ever had any experience with this before?

Here is some code that I had some help with, but its not working. Any info to make this work would be great.

__________________________________________________________________-

if __name__ == "__main__":

   n = input("Enter a integer number ")

#sum of numbers from 1 to n

sumOfIntegers = 0

for i in range(1,n+1):

   sumOfIntegers = sumOfIntegers + i

   print (" Sum of integers up to ",n,"is ",sumOfIntegers)

#factorial of the number

factorial = 1

if n == 0:

   factorial = 1

else:

   for i in range(1,n+1):

       factorial = factorial*i

       print (" The factorial of ",n, "is ",factorial)

       print (" ")

#Third question can be

#1.finding all the fib numbers up to n

#2.finding n fib numbers

#solving 1

print (" a.fib numbers up to ",n," are")

old = 0

cur = 1

print (old)

print (cur)

while ( cur < n):

   new = old + cur

   old = cur

   cur = new

   print (new)

   #solving 2

   print (" b.",n,"fib numbers")

   old = 0

   cur = 1

   print (old)

   print (cur)

   count = 2

while (count < n):

   new = old + cur

   old = cur

   cur = new

   print (new)

   count = count + 1

Explanation / Answer

NOTE: If you face any issues in code execution let me know. I will revert back within 24 hours.

Code link also here for easy copying: http://pasted.co/d0350470

Code:

#!/usr/local/bin/python3

def main():
   n = int(input('Enter a number: '))

   # sum of integers from 1 to n(including)
   sum = 0
   for i in range(1, n+1):
       sum += i
   print('Sum of integers from 1 to',n, 'is:',sum)
  
   # factorial of a number n
   i = 1
   fact = 1
   while i <= n:
       fact *= i
       i += 1
   print('Factorial of number',n,'is:',fact)
  
   # fibonaccei series
   a = 0
   b = 1
   # if n is less than that 2 i.e. 1 we will print the first number and return back
   if(n < 2):
       print('Fibonaccei series of number',n,'is:')
       print(a)
       return
   i = 2
   print('Fibonaccei series of number',n,'is:')
   print(a)
   print(b)
   while i < n:
       c = a + b
       a = b
       b = c
       i += 1
       print(c)
      
if __name__=='__main__':
   main()

Execution output screenshot:

https://pasteboard.co/GAdMGK5.png

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