Python program

EX.NO :1

 

AIM:

Temperature conversion

PROGRAM:

print("1.Celcius to Fahrenheit\n2.Fahrenheit to Celcius")

ch=int(input("Enter the choice:"))

while(ch!=0):

    if(ch==1):

        c=float(input("Enter the value of celcius:"))

        f=(c*1.8)+32

        print("Fahrenheit value:",f)

    else:

        f=float(input("Enter the value of Fahrenheit:"))

        c=(f-32)/1.8

        print("Celcius value: ",c)

    print("1.Celcius to Fahrenheit\n2.Fahrenheit to Celcius\n 0.Exit")

    ch=int(input("Enter the choice:"))

OUTPUT:

1.Celcius to Fahrenheit

2.Fahrenheit to Celcius

Enter the choice:1

Enter the value of celcius:36.7

Fahrenheit value: 98.06

1.Celcius to Fahrenheit

2.Fahrenheit to Celcius

 0.Exit

Enter the choice:2

Enter the value of Fahrenheit:98.4

Celcius value:  36.88888888888889

1.Celcius to Fahrenheit

2.Fahrenheit to Celcius

 0.Exit

Enter the choice:0

 

 

 

 

 

 

 

 

EX.NO :2

 

AIM:
            Area of shapes using user defined functions.

PROGRAM:

def circle(r):

    return 3.14*r*r

def square(s):

    return s*s

def rectangle(l,b):

    return l*b

def triangle(b,h):

    return b*h*0.5

print("1.Area of circle\n2.Area of square\n3.Area of rectangle\n4.Area of triangle\n0.Exit ")

ch=int(input("Enter the choice: "))

while(ch!=0):

    if(ch==1):

        a=circle(float(input("Radius:")))

        print("Area of circle:",a)

    elif(ch==2):

        a=square(float(input("Side:")))

        print("Area of square:",a)

    elif(ch==3):

        a=rectangle(float(input("Length:")),float(input("Breadth:")))

        print("Area of rectangle:",a)

 

    elif(ch==4):

        a=triangle(float(input("Base:")),float(input("Height:")))

        print("Area of triangle:",a)

    print("\n1.Area of circle\n2.Area of square\n3.Area of rectangle\n4.Area of triangle\n0.Exit ")

    ch=int(input("Enter the choice: "))

OUTPUT:

1.Area of circle

2.Area of square

3.Area of rectangle

4.Area of triangle

0.Exit

Enter the choice: 1

Radius:3

Area of circle: 28.259999999999998

 

1.Area of circle

2.Area of square

3.Area of rectangle

4.Area of triangle

0.Exit

Enter the choice: 2

Side:2

Area of square: 4.0

 

1.Area of circle

2.Area of square

3.Area of rectangle

4.Area of triangle

0.Exit

Enter the choice: 3

Length:2

Breadth:3

Area of rectangle: 6.0

 

1.Area of circle

2.Area of square

3.Area of rectangle

4.Area of triangle

0.Exit

Enter the choice: 4

Base:2

Height:3

Area of triangle: 3.0

 

1.Area of circle

2.Area of square

3.Area of rectangle

4.Area of triangle

0.Exit

Enter the choice: 0

 

 

 

 

 

 

 

 

 

EX.NO :3

AIM:

To generate a Fibonacci series.

PROGRAM:

n=int(input("Enter the number of terms : "))

a=0

b=1

print("Fibonacci series upto %d terms:"%n)

for x in range(0,n):

    print(a)

    s=a+b

    a=b

    b=s

 

OUTPUT:

Enter the number of terms : 6

Fibonacci series upto 6 terms:

0

1

1

2

3

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EX.NO :4

AIM:

          To generate a factorial for a given number.

PROGRAM:

n=int(input("Enter the number: "))

fact=1

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

    fact=fact*i

print("Factorial of %d : %d"%(n,fact))

OUTPUT:

Enter the number: 6

Factorial of 6 : 720

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EX.NO :5

AIM:

            Check whether the given number is Armstrong or not.

PROGRAM:

n=int(input("Enter the number:"))

t=n

arm=0

while(t>0):

    i=t%10

    arm=arm+pow(i,3)

    t//=10

if(arm==n):

   print(n," is a armstrong number.")

else:

    print(n," is not a armstrong number.")

 

OUTPUT 1:

Enter the number:153

153  is a armstrong number.

OUTPUT 2:

Enter the number:154

154  is not a armstrong number.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EX.NO :6

AIM:

                        Check whether the given number is palindrome or not.

PROGRAM:

n=int(input("Enter the number: "))

t=n

rev=0

while(t>0):

    i=t%10

    rev=rev*10+i

    t//=10

if(rev==n):

    print(n," is a palindrome number.")

else:

    print(n," is not a palindrome number.")

 

OUTPUT 1:

Enter the number: 1221

1221  is a palindrome number.

 

OUTPUT 2:

Enter the number: 2221

2221  is not a palindrome number.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EX.NO :7

AIM:

            Check whether the given number is perfect or not.

 

PROGRAM:

n=int(input("Enter the number:"))

t=n

p=0

for i in range(1,t):

    if(t%i==0):

        p+=i

   

if(p==n):

   print(n," is a perfect number.")

else:

    print(n," is not a perfect number.")

 

OUTPUT 1:

Enter the number:6

6  is a perfect number.

OUTPUT 2:

Enter the number:12

12  is not a perfect number.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EX.NO :8

AIM:

            Sort an array of numbers.

 

PROGRAM:

n=int(input("Enter the number of elements:"))

list=[]

for i in range(0,n):

    e=int(input("Enter the number:"))

    list.append(e)

print("sorted array")

for i in range(0,n):

    for j in range(i+1,n):

        if(list[i]>list[j]):

            t=list[i]

            list[i]=list[j]

            list[j]=t

    print(list[i])

 

OUTPUT:

Enter the number of elements:5

Enter the number:3

Enter the number:2

Enter the number:4

Enter the number:1

Enter the number:6

sorted array

1

2

3

4

6

 

 

 

 

 

 

 

 

 

 

EX.NO :9

AIM:

            Sum of series.

PROGRAM:

sum=1

print("Find e^x value")

n=int(input("Enter the value of x:"))

def fact(n):

    f=1

    for i in range(1,n+1):

        f=f*i

    return f

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

    sum+=(pow(n,i)/fact(i))

print("Sum of series:",sum)

OUTPUT:

Find e^x value

Enter the value of x:5

Sum of series: 91.41666666666667

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EX.NO :10

AIM:

            Sum of two matrices.

PROGRAM:

def display(a,m1,n1):

    for i in range(m1):

        for j in range(n1):

            print(a[i][j],end=' ')

        print()

   

m1=int(input("Enter the number of rows of Matrix A:"))

n1=int(input("Enter the number of columns of Matrix A:"))

a=[]

b=[]

for i in range(m1):

    t=[]

    for j in range(n1):

        t.append(float(input("Enter the value of a%d%d: "%(i+1,j+1))))

    a.append(t)

print()

 

m2=int(input("Enter the number of rows of Matrix B:"))

n2=int(input("Enter the number of columns of Matrix B:"))

for i in range(m2):

    t=[]

    for j in range(n2):

        t.append(float(input("Enter the value of b%d%d: "%(i+1,j+1))))

    b.append(t)

print()

s=[]

if(m1==m2)&(n1==n2):

    for i in range(m1):

        t=[]

        for j in range(n1):

            t.append(a[i][j]+b[i][j])

        s.append(t)

    print("Matrix A:")

    display(a,m1,n1)

    print("Matrix B:")

    display(b,m2,n2)

    print("Sum of Matrix A and Matrix B:")

    display(s,m1,n1)

else:

    print("Sum of Matrix A and Matrix B is not possible.")

 

OUTPUT:

 

Enter the number of rows of Matrix A:2

Enter the number of columns of Matrix A:2

Enter the value of a11: 1

Enter the value of a12: 2

Enter the value of a21: 3

Enter the value of a22: 4

 

Enter the number of rows of Matrix B:2

Enter the number of columns of Matrix B:2

Enter the value of b11: 1

Enter the value of b12: 2

Enter the value of b21: 3

Enter the value of b22: 4

 

Matrix A:

1.0  2.0

3.0  4.0

Matrix B:

1.0  2.0

3.0  4.0

Sum of Matrix A and Matrix B:

2.0  4.0

6.0  8.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EX.NO :11

AIM:

Product of two matrices.

PROGRAM:

 

def display(a,m1,n1):

    for i in range(m1):

        for j in range(n1):

            print(a[i][j],end=' ')

        print()

m1=int(input("Enter the number of rows of Matrix A:"))

n1=int(input("Enter the number of columns of Matrix A:"))

a=[]

b=[]

for i in range(m1):

    t=[]

    for j in range(n1):

        t.append(int(input("Enter the value of a%d%d :"%(i+1,j+1))))

    a.append(t)

print()

m2=int(input("Enter the number of rows of Matrix B:"))

n2=int(input("Enter the number of columns of Matrix B:"))

for i in range(m2):

    t=[]

    for j in range(n2):

        t.append(int(input("Enter the value of b%d%d: "%(i+1,j+1))))

    b.append(t)

print()

m=[]

if(m2==n1):

    for i in range(m1):

        t=[]

        for j in range(n2):

            temp=0

            for k in range(n1):

                temp+=a[i][k]*b[k][j]

            t.append(temp)

        m.append(t)

    print("Matrix A:")

    display(a,m1,n1)

    print("Matrix B:")

    display(b,m2,n2)

    print("Multiplication of Matrix A and Matrix B:")

    display(m,m1,n2)

else:

    print("Multiplication of Matrix A and Matrix B is not possible.")

 

OUTPUT:

Enter the number of rows of Matrix A:2

Enter the number of columns of Matrix A:2

Enter the value of a11 :1

Enter the value of a12 :2

Enter the value of a21 :3

Enter the value of a22 :4

 

Enter the number of rows of Matrix B:2

Enter the number of columns of Matrix B:2

Enter the value of b11: 1

Enter the value of b12: 2

Enter the value of b21: 3

Enter the value of b22: 4

 

Matrix A:

1 2

3 4

Matrix B:

1 2

3 4

Multiplication of Matrix A and Matrix B:

7 10

15 22

EX.NO :12

AIM:

            String function.

PROGRAM:

def getstr():

    str1=input("Enter the String:")

    return str1

while True:

    print("\n1.Find length of the String\n2.To uppercase\n3.To lowercase\n4.compare two strings\n5.Capitalizing the string\n6.Reverse the String\n7.exit")

    ch=int(input("Enter your choice:"))

 

    if(ch==1):

        str1=getstr()

        print("length of the String:",len(str1))

    elif(ch==2):

        str1=getstr()

        print("To uppercase:",str1.upper())

    elif(ch==3):

        str1=getstr()

        print("To lowercase:",str1.lower())

    elif(ch==4):

        str1=getstr()

        str2=getstr()

        print("compare two strings:",str1==str2)

    elif(ch==5):

        str1=getstr()

        print("Capitalizing the string:",str1.capitalize())

    elif(ch==6):

        str1=getstr()

        print("Reverse the String:",str1[::-1])

   

    else:

        break

 

 

OUTPUT:

1.Find length of the String

2.To uppercase

3.To lowercase

4.compare two strings

5.Capitalizing the string

6.Reverse the String

7.exit

Enter your choice:1

Enter the String:saran

length of the String: 5

 

1.Find length of the String

2.To uppercase

3.To lowercase

4.compare two strings

5.Capitalizing the string

6.Reverse the String

7.exit

Enter your choice:2

Enter the String:saran

To uppercase: SARAN

 

1.Find length of the String

2.To uppercase

3.To lowercase

4.compare two strings

5.Capitalizing the string

6.Reverse the String

7.exit

Enter your choice:3

Enter the String:Saran

To lowercase: saran

 

1.Find length of the String

2.To uppercase

3.To lowercase

4.compare two strings

5.Capitalizing the string

6.Reverse the String

7.exit

Enter your choice:4

Enter the String:saran

Enter the String:Saran

compare two strings: False

 

1.Find length of the String

2.To uppercase

3.To lowercase

4.compare two strings

5.Capitalizing the string

6.Reverse the String

7.exit

Enter your choice:4

Enter the String:Saran

Enter the String:Saran

compare two strings: True

 

1.Find length of the String

2.To uppercase

3.To lowercase

4.compare two strings

5.Capitalizing the string

6.Reverse the String

7.exit

Enter your choice:5

Enter the String:saran

Capitalizing the string: Saran

 

1.Find length of the String

2.To uppercase

3.To lowercase

4.compare two strings

5.Capitalizing the string

6.Reverse the String

7.exit

Enter your choice:6

Enter the String:saran

Reverse the String: naras

 

1.Find length of the String

2.To uppercase

3.To lowercase

4.compare two strings

5.Capitalizing the string

6.Reverse the String

7.exit

Enter your choice:7

 

EX.NO :13

AIM:

            To swap two elements in list.

PROGRAM:

n=int(input("Enter the number of elements:"))

list1=[]

for i in range(0,n):

    e=int(input("Enter the number:"))

    list1.append(e)

i=int(input("Enter the first index to swap:"))

j=int(input("Enter the first index to swap:"))

print("Given list:",list1)

list1[i],list1[j]=list1[j],list1[i]

print("After swapping list:",list1)

 

OUTPUT:

Enter the number of elements:5

Enter the number:1

Enter the number:2

Enter the number:3

Enter the number:4

Enter the number:5

Enter the first index to swap:3

Enter the first index to swap:4

Given list: [1, 2, 3, 4, 5]

After swapping list: [1, 2, 3, 5, 4]
EX.NO :14

AIM:

            Sort python dictionary by key or name.

PROGRAM:

dict1 = {}

n=int(input("ENTER THE NUMBER OF ELEMENTS:"))

for i in range(n):

    dict1[input("Enter Name:")]=int(input("Enter Register No.:"))

sorted_dict = dict(sorted(dict1.items()))

print("Given dictionary: ",dict1)

print("Sorted dictionary using name: ",sorted_dict)

 

OUTPUT:

 

ENTER THE NUMBER OF ELEMENTS:5

Enter Register No.:1

enter Name:saran

Enter Register No.:2

enter Name:arun

Enter Register No.:3

enter Name:karan

Enter Register No.:4

enter Name:karthi

Enter Register No.:5

enter Name:vijay

Given dictionary:  {'saran': 1, 'arun': 2, 'karan': 3, 'karthi': 4, 'vijay': 5}

Sorted dictionary using name:  {'arun': 2, 'karan': 3, 'karthi': 4, 'saran': 1, 'vijay': 5}

EX.NO :15

AIM:

            Merging two dictionaries.

PROGRAM:

def Merge(dict1, dict2):

    return(dict2.update(dict1))

 

 

dict1 = {}

n=int(input("ENTER THE NUMBER OF ELEMENTS in Dict1:"))

for i in range(n):

    dict1[input("Enter Name:")]=int(input("Enter Register No.:"))

dict2 = {}

n=int(input("ENTER THE NUMBER OF ELEMENTS in Dict2:"))

for i in range(n):

    dict2[input("Enter Name:")]=int(input("Enter Register No.:"))

 

print(Merge(dict1, dict2))

 

print(dict2)

 

OUTPUT:

ENTER THE NUMBER OF ELEMENTS in Dict1:3

Enter Register No.:1

Enter Name:saran

Enter Register No.:2

Enter Name:maran

Enter Register No.:3

Enter Name:karan

ENTER THE NUMBER OF ELEMENTS in Dict2:2

Enter Register No.:1

Enter Name:py

Enter Register No.:2

Enter Name:may

None

{'py': 1, 'may': 2, 'saran': 1, 'maran': 2, 'karan': 3}
EX.NO :16

AIM:

            To count even and odd numbers in a list and print them separately.

PROGRAM:

 

n=int(input("Enter the number of elements:"))

list=[]

odd,even=0,0

for i in range(0,n):

    e=int(input("Enter the number:"))

    list.append(e)

for i in list:

    if(i%2==0):

        even+=1

    else:

        odd+=1

   

           

print("Even numbers count:",even)

print("Odd numbers count :",odd)

OUTPUT:

 

Enter the number of elements:5

Enter the number:1

Enter the number:2

Enter the number:3

Enter the number:4

Enter the number:5

Even numbers count: 2

Odd numbers count : 3

EX.NO :17

AIM:

            Creating CSV file.

PROGRAM:

import csv

c=int(input("Enter the number of columns:"))

r=int(input("Enter the number of data:"))

data=[]

for i in range(r):

        row=[]

        print(f"Enter the data of row {i+1}")

        for j in range(c):

            d=input(f"Enter the value of column {j+1}:")

            row.append(d)

        data.append(row)

filename =input("Enter the filename without extension:")+'.csv'

with open(filename, 'w',newline='') as csvfile:

            csvwriter= csv.writer(csvfile)

            csvwriter.writerows(data)

 

OUTPUT:

Enter the number of columns:3

Enter the number of data:5

Enter the data of row 1

Enter the value of column 1:Name

Enter the value of column 2:Age

Enter the value of column 3:City

Enter the data of row 2

Enter the value of column 1:Saran

Enter the value of column 2:22

Enter the value of column 3:Sattur

Enter the data of row 3

Enter the value of column 1:Karan

Enter the value of column 2:23

Enter the value of column 3:Sivakasi

Enter the data of row 4

Enter the value of column 1:Vetri

Enter the value of column 2:22

Enter the value of column 3:Madurai

Enter the data of row 5

Enter the value of column 1:Kathir

Enter the value of column 2:21

Enter the value of column 3:Virudhunagar

Enter the filename without extension:student

 

 

 

 

 

 

 

 

 

EX.NO :18

AIM:

            Display the contents from already created CSV file student details.

PROGRAM:

import csv

filename =input("Enter the filename without extension:")+'.csv'

with open(filename, 'r') as csvfile:

    read=csv.reader(csvfile)

    for row in read:

        print(row)

 

OUTPUT:

Enter the filename without extension:student

['Name', 'Age', 'City']

['Saran', '22', 'Sattur']

['Karan', '23', 'Sivakasi']

['Vetri', '22', 'Madurai']

['Kathir', '21', 'Virudhunagar']