Looping

• we may need to execute a set of statements multiple times, called iteration or looping.

for loop

• for loop is the most comfortable loop.
• It is also an entry check loop.
• The condition is
  checked in the beginning and the body of the loop(statements-block 1) is executed if it is only True otherwise the loop is not executed.

PY 1(a) – CALCULATE FACTORIAL

QUESTION:

Write a program to calculate the factorial of the given number using for loop.

AIM:

To calculate the factorial of the given number using for loop.

CODING:

num = int(input(“Enter the number:”))

if(num==0):

fact = 1

fact = 1

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

fact = fact*i

print(“Factorial of “, num,” is”, fact)

OUTPUT:

Enter a Number: 0

Factorial of 0 is 1

Enter a Number: 12

Factorial of 12 is 479001600

RESULT:

The Output was verified successfully

PY 1(b) – SUM OF SERIES

QUESTION:

Write a program to sum the series: 1/1 + 2²/2 + 3³/3 + ……. nⁿ/n

AIM:

To calculate the sum of the series: 1/1 + 2²/2 + 3³/3 + ……. nⁿ/n

CODING:

num = int(input(“Enter a value of n:”))

s=0.0

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

a=float(i**i)/i

s=s+a

print(“The sum of the series is”, s)

OUTPUT:

Enter a value of n: 4

The sum of the series is 76.0

RESULT:

The Output was verified successfully