PYTHON PROGRAMS FOR CLASS - XI

 Python Programs

Informatics Practices (065)

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1. WAP in Python to Find the Square Root of any number

a = float(input('Enter a number: '))

sqrt = a ** 0.5

print('The square root of ',a, 'is',sqrt)

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2. WAP in Python to Calculate the Area of a Triangle (Heron’s Method)

a = float(input('Enter first side: '))

b = float(input('Enter second side: '))

c = float(input('Enter third side: '))

# Calculate the semi-perimeter

s = (a + b + c) / 2

# Calculate the area

area = (s*(s-a)*(s-b)*(s-c)) ** 0.5

print('The area of the triangle is ', area)

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3. WAP in Python to Generate a Random Number

# import the random module

import random

print(random.randint(1,20))

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4. WAP in Python to Check if a Number is Even or Odd

num = int(input("Enter a number: "))

if (num % 2) == 0:

   print(num, "is Even")

else:

   print(num, "is Odd")

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5. WAP in Python to Print all Prime Numbers in an Interval

lower = int(input('Enter the lower number :'))

upper = int(input('Enter the upper number :'))

print("Prime numbers between", lower, "and", upper, "are:")

for num in range(lower, upper + 1):

   # all prime numbers are greater than 1

   if num > 1:

       for i in range(2, num):

           if (num % i) == 0:

               break

       else:

           print(num)

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6. WAP to Print the Fibonacci sequence of n-terms

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

a1, a2 = 0, 1

count = 0

if nterms <= 0:

   print("Please enter a valid number")

elif nterms == 1:

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

   print(a1)

else:

   print("Fibonacci sequence of", nterms, 'numbers')

   while count < nterms:

       print(a1)

       nth = a1 + a2

       a1 = a2

       a2 = nth

       count += 1

7. WAP to Find the Factorial of any Number

num = int(input("Enter any number: "))

factorial = 1

if num < 0:

   print("Sorry, this is negative number")

elif num == 0:

   print("The factorial of 0 is 1")

else:

   for i in range(1,num + 1):

       factorial = factorial*i

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

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