1.
Write a Python program to find the area and perimeter of a circle
# Initialising the value of PI
PI = 3.14
# Getting input from user
R = float(input("Enter radius of the circle: "))
# Finding the area and perimeter of the circle
area = (PI*R*R)
perimeter = (2*PI*R)
# Printing the area and perimeter of the circle
print("The area of circle is", area)
print("The perimeter of circle is", perimeter)
RESULT:
RUN 1:
Enter radius of the circle: 1.2
The area of circle is 4.521599999999999
The perimeter of circle is 7.536
RUN 2:
Enter radius of the circle: 35.63
The area of circle is 3986.2202660000007
The perimeter of circle is 223.7564
2. Write a Python program to generate Fibonacci series.
n = int(input("Enter the value of 'n': "))
a=0
b=1
sum = 0
count = 1
print("Fibonacci Series: ", end = " ")
while(count <= n):
print(sum, end = " ")
count += 1
a=b
b = sum
sum = a + b
RESULT :
Input:
Enter the value of 'n': 5
Output:
Fibonacci Series: 0 1 1 2 3
3. Write a Python program to compute the GCD of two numbers.
def gcd(a,b):
if(b==0):
return a
else:
return gcd(b,a%b)
a=int(input("Enter first number:"))
b=int(input("Enter second number:"))
GCD=gcd(a,b)
print("GCD is: ")
print(GCD)
RESULT :
Enter the first number:5
Enter the second number:15
The GCD of the two numbers is 5
4. Write a Python program to generate first n prime numbers.
i=1
x = int(input("Enter the number:"))
for k in range(1, x+1):
c=0
for j in range(1, i+1):
a=i%j
if a == 0:
c=c+1
if c == 2:
print(i)
else:
k=k-1
i=i+1
RESULT :
5. Write a Python program to find the sum of squares of n natural numbers.
N = int(input("Enter value of N: "))
# calculating sum of square
sumVal = 0
for i in range(1, N+1):
sumVal += (i*i)
print("Sum of squares = ", sumVal)
RESULT :
RUN 1:
Enter value of N: 10
Sum of squares = 385
RUN 2:
Enter value of N: 12
Sum of squares = 650
6.Write a Python program to find the sum of the elements in an array.
import array as ar
def SumofArray(arr):
sum=0
n = len(arr)
for i in range(n):
sum = sum + arr[i]
return sum
#input values to list
a = ar.array('i',[10, 21, 12, 13])
# display sum
print ('Sum of the array is ', SumofArray(a) )
RESULT :
Sum of the array is 56
7. Write a Python program to find the largest element in the array.
import array as ar
def MaxofArray(arr):
max=a[0]
n = len(arr)
for i in range(n):
if(max<a[i]):
max=a[i]
return max
#input values to list
a = ar.array('i',[10, 21, 12, 13])
# display sum
print ('Max of the array is ', MaxofArray(a) )
RESULT :
Max of the array is 21
8.Write a Python program to check if the given string is a palindrome or not.
def is Palindrome(string):
if string==string[::-1]:
return "THE GIVEN STRING IS PARLINDROME"
else:
return " THE GIVEN STRING IS NOT PARLINDROME "
s1="AMMA"
s2="CAPTAIN"
print(s1,":",isPalindrome(s1))
print(s2,":",isPalindrome(s2))
OUTPUT :
AMMA : THE GIVEN STRING IS PARLINDROME
CAPTAIN : THE GIVEN STRING IS NOT PARLINDROME
9.Write a Python program to store strings in a list and print them.
li = [ 'have', 'a', 'nice', 'day']
# assign string
str = 'nice'
# check if string is present in the list
if str in li:
print(f'{string} is present in the list')
else:
print(f'{string} is not present in the list')
OUTPUT
nice is present in the list
10.Write a Python program to find the length of a list, reverse it, copy it
i = [10, 20, 30]
n = len(li)
print("The length of list is: ", n)
The length of list is: 3
