Thursday, March 30, 2017
Python Program to Print Hello world!
Python Program to Add Two Numbers
Python Program to Find the Square Root
Python Program to Calculate the Area of a Triangle
Python Program to Solve Quadratic Equation
Python Program to Swap Two Variables
Python Program to Generate a Random Number
Python Program to Convert Kilometers to Miles
Python Program to Convert Celsius To Fahrenheit
Python program to check if a number is positive, negative or zero
Python Program to Check if a Number is Odd or Even
Python Program to Check Leap Year
Python Program to Find the Largest Among Three Numbers
Python Program to Check Prime Number
Python Program to Print all Prime Numbers in an Interval
Python Program to Find the Factorial of a Number
Python Program to Display the multiplication Table
Python Program to Print the Fibonacci sequence
Python Program to Check Armstrong Number
Python Program to Find Armstrong Number in an Interval
Python Program to Find the Sum of Natural Numbers
Python Program To Display Powers of 2 Using Anonymous Function
Python Program to Find Numbers Divisible by Another Number
Python Program to Convert Decimal to Binary, Octal and Hexadecimal
Python Program to Find ASCII Value of Character
Python Program to Find HCF or GCD
Python Program to Find LCM
Python Program to Find Factors of Number
Python Program to Make a Simple Calculator
Python Program to Shuffle Deck of Cards
Python Program to Display Calendar
Python Program to Display Fibonacci Sequence Using Recursion
Python Program to Find Sum of Natural Numbers Using Recursion
Python Program to Find Factorial of Number Using Recursion
Python Program to Convert Decimal to Binary Using Recursion
Python Program to Add Two Matrices
Python Program to Transpose a Matrix
Python Program to Multiply Two Matrices
Python Program to Check Whether a String is Palindrome or Not
Python Program to Remove Punctuations From a String
Python Program to Sort Words in Alphabetic Order
Python Program to Illustrate Different Set Operations
Python Program to Count the Number of Each Vowel
Python Program to Merge Mails
Python Program to Find the Size (Resolution) of a Image
Python Program to Find Hash of File
# This program prints Hello, world!
print('Hello, world!')
# This program adds two numbers
num1 = 1.5
num2 = 6.3
# Add two numbers
sum = float(num1) + float(num2)
# Display the sum
print('The sum of {0} and {1} is {2}'.format(num1, num2, sum))
# Python Program to calculate the square root
# Note: change this value for a different result
num = 8
# uncomment to take the input from the user
#num = float(input('Enter a number: '))
num_sqrt = num ** 0.5
print('The square root of %0.3f is %0.3f'%(num ,num_sqrt))
# Python Program to find the area of triangle
a = 5
b = 6
c = 7
# Uncomment below to take inputs from the user
# 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 %0.2f' %area)
# Solve the quadratic equation ax**2 + bx + c = 0
# import complex math module
import cmath
a = 1
b = 5
c = 6
# To take coefficient input from the users
# a = float(input('Enter a: '))
# b = float(input('Enter b: '))
# c = float(input('Enter c: '))
# calculate the discriminant
d = (b**2) - (4*a*c)
# find two solutions
sol1 = (-b-cmath.sqrt(d))/(2*a)
sol2 = (-b+cmath.sqrt(d))/(2*a)
print('The solution are {0} and {1}'.format(sol1,sol2))
# Python program to swap two variables
# To take input from the user
# x = input('Enter value of x: ')
# y = input('Enter value of y: ')
x = 5
y = 10
# create a temporary variable and swap the values
temp = x
x = y
y = temp
print('The value of x after swapping: {}'.format(x))
print('The value of y after swapping: {}'.format(y))
# Program to generate a random number between 0 and 9
# import the random module
import random
print(random.randint(0,9))
#progam to convert kilometers to miles
kilometers = 5.5
# To take kilometers from the user, uncomment the code below
kilometers = input("Enter value in kilometers")
# conversion factor
conv_fac = 0.621371
# calculate miles
miles = kilometers * conv_fac
print('%0.3f kilometers is equal to %0.3f miles' %(kilometers,miles))
# Python Program to convert temperature in celsius to fahrenheit
# change this value for a different result
celsius = 37.5
# calculate fahrenheit
fahrenheit = (celsius * 1.8) + 32
print('%0.1f degree Celsius is equal to %0.1f degree Fahrenheit' %(celsius,fahrenheit))
#Python program to check if a number is positive, negative or zero
num = float(input("Enter a number: "))
if num > 0:
print("Positive number")
elif num == 0:
print("Zero")
else:
print("Negative number")
# Python program to check if the input number is odd or even.
# A number is even if division by 2 give a remainder of 0.
# If remainder is 1, it is odd number.
num = int(input("Enter a number: "))
if (num % 2) == 0:
print("{0} is Even".format(num))
else:
print("{0} is Odd".format(num))
# Python program to check if the input year is a leap year or not
year = 2000
# To get year (integer input) from the user
# year = int(input("Enter a year: "))
if (year % 4) == 0:
if (year % 100) == 0:
if (year % 400) == 0:
print("{0} is a leap year".format(year))
else:
print("{0} is not a leap year".format(year))
else:
print("{0} is a leap year".format(year))
else:
print("{0} is not a leap year".format(year))
# Python program to find the largest number among the three input numbers
# change the values of num1, num2 and num3
# for a different result
num1 = 10
num2 = 14
num3 = 12
# uncomment following lines to take three numbers from user
#num1 = float(input("Enter first number: "))
#num2 = float(input("Enter second number: "))
#num3 = float(input("Enter third number: "))
if (num1 > num2) and (num1 > num3):
largest = num1
elif (num2 > num1) and (num2 > num3):
largest = num2
else:
largest = num3
print("The largest number between",num1,",",num2,"and",num3,"is",largest)
# Python program to check if the input number is prime or not
num = 407
# take input from the user
# num = int(input("Enter a number: "))
# prime numbers are greater than 1
if num > 1:
# check for factors
for i in range(2,num):
if (num % i) == 0:
print(num,"is not a prime number")
print(i,"times",num//i,"is",num)
break
else:
print(num,"is a prime number")
# if input number is less than
# or equal to 1, it is not prime
else:
print(num,"is not a prime number")
# Python program to find the factorial of a number provided by the user.
# change the value for a different result
num = 7
# uncomment to take input from the user
#num = int(input("Enter a number: "))
factorial = 1
# check if the number is negative, positive or zero
if num < 0:
print("Sorry, factorial does not exist for negative numbers")
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)
# Program to display the Fibonacci sequence up to n-th term where n is provided by the user
# change this value for a different result
nterms = 10
# uncomment to take input from the user
#nterms = int(input("How many terms? "))
# first two terms
n1 = 0
n2 = 1
count = 2
# check if the number of terms is valid
if nterms <= 0:
print("Please enter a positive integer")
elif nterms == 1:
print("Fibonacci sequence upto",nterms,":")
print(n1)
else:
print("Fibonacci sequence upto",nterms,":")
print(n1,",",n2,end=', ')
while count < nterms:
nth = n1 + n2
print(nth,end=' , ')
# update values
n1 = n2
n2 = nth
count += 1
# Python program to check if the number provided by the user is an Armstrong number or not
# take input from the user
# num = int(input("Enter a number: "))
# initialize sum
sum = 0
# find the sum of the cube of each digit
temp = num
while temp > 0:
digit = temp % 10
sum += digit ** 3
temp //= 10
# display the result
if num == sum:
print(num,"is an Armstrong number")
else:
print(num,"is not an Armstrong number")
# Program to check Armstrong numbers in certain interval
lower = 100
upper = 2000
# To take input from the user
# lower = int(input("Enter lower range: "))
# upper = int(input("Enter upper range: "))
for num in range(lower, upper + 1):
# order of number
order = len(str(num))
# initialize sum
sum = 0
# find the sum of the cube of each digit
temp = num
while temp > 0:
digit = temp % 10
sum += digit ** order
temp //= 10
if num == sum:
print(num)
# Python program to find the sum of natural numbers up to n where n is provided by user
# change this value for a different result
num = 16
# uncomment to take input from the user
#num = int(input("Enter a number: "))
if num < 0:
print("Enter a positive number")
else:
sum = 0
# use while loop to iterate un till zero
while(num > 0):
sum += num
num -= 1
print("The sum is",sum)
# Python Program to display the powers of 2 using anonymous function
# Change this value for a different result
terms = 10
# Uncomment to take number of terms from user
#terms = int(input("How many terms? "))
# use anonymous function
result = list(map(lambda x: 2 ** x, range(terms)))
# display the result
print("The total terms is:",terms)
for i in range(terms):
print("2 raised to power",i,"is",result[i])
# Python program to display all the prime numbers within an interval
# change the values of lower and upper for a different result
lower = 900
upper = 1000
# uncomment the following lines to take input from the user
#lower = int(input("Enter lower range: "))
#upper = int(input("Enter upper range: "))
print("Prime numbers between",lower,"and",upper,"are:")
for num in range(lower,upper + 1):
# prime numbers are greater than 1
if num > 1:
for i in range(2,num):
if (num % i) == 0:
break
else:
print(num)
''' Python program to find the
multiplication table (from 1 to 10)'''
num = 12
# To take input from the user
# num = int(input("Display multiplication table of? "))
# use for loop to iterate 10 times
for i in range(1, 11):
print(num,'x',i,'=',num*i)
# Python program to convert decimal number into binary, octal and hexadecimal number system
# Change this line for a different result
dec = 344
print("The decimal value of",dec,"is:")
print(bin(dec),"in binary.")
print(oct(dec),"in octal.")
print(hex(dec),"in hexadecimal.")
# Python program to display calendar of given month of the year
# import module
import calendar
yy = 2014
mm = 11
# To ask month and year from the user
# yy = int(input("Enter year: "))
# mm = int(input("Enter month: "))
# display the calendar
print(calendar.month(yy, mm))
# Python program to shuffle a deck of card using the module random and draw 5 cards
# import modules
import itertools, random
# make a deck of cards
deck = list(itertools.product(range(1,14),['Spade','Heart','Diamond','Club']))
# shuffle the cards
random.shuffle(deck)
# draw five cards
print("You got:")
for i in range(5):
print(deck[i][0], "of", deck[i][1])
''' Program make a simple calculator that can add, subtract, multiply and divide using functions '''
# define functions
def add(x, y):
"""This function adds two numbers"""
return x + y
def subtract(x, y):
"""This function subtracts two numbers"""
return x - y
def multiply(x, y):
"""This function multiplies two numbers"""
return x * y
def divide(x, y):
"""This function divides two numbers"""
return x / y
# take input from the user
print("Select operation.")
print("1.Add")
print("2.Subtract")
print("3.Multiply")
print("4.Divide")
choice = input("Enter choice(1/2/3/4):")
num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))
if choice == '1':
print(num1,"+",num2,"=", add(num1,num2))
elif choice == '2':
print(num1,"-",num2,"=", subtract(num1,num2))
elif choice == '3':
print(num1,"*",num2,"=", multiply(num1,num2))
elif choice == '4':
print(num1,"/",num2,"=", divide(num1,num2))
else:
print("Invalid input")
# Python Program to find the factors of a number
# define a function
def print_factors(x):
# This function takes a number and prints the factors
print("The factors of",x,"are:")
for i in range(1, x + 1):
if x % i == 0:
print(i)
# change this value for a different result.
num = 320
# uncomment the following line to take input from the user
#num = int(input("Enter a number: "))
print_factors(num)
# Program to add two matrices using nested loop
X = [[12,7,3],
[4 ,5,6],
[7 ,8,9]]
Y = [[5,8,1],
[6,7,3],
[4,5,9]]
result = [[0,0,0],
[0,0,0],
[0,0,0]]
# iterate through rows
for i in range(len(X)):
# iterate through columns
for j in range(len(X[0])):
result[i][j] = X[i][j] + Y[i][j]
for r in result:
print(r)
# Program to transpose a matrix using nested loop
X = [[12,7],
[4 ,5],
[3 ,8]]
result = [[0,0,0],
[0,0,0]]
# iterate through rows
for i in range(len(X)):
# iterate through columns
for j in range(len(X[0])):
result[j][i] = X[i][j]
for r in result:
print(r)
# Program to multiply two matrices using nested loops
# 3x3 matrix
X = [[12,7,3],
[4 ,5,6],
[7 ,8,9]]
# 3x4 matrix
Y = [[5,8,1,2],
[6,7,3,0],
[4,5,9,1]]
# result is 3x4
result = [[0,0,0,0],
[0,0,0,0],
[0,0,0,0]]
# iterate through rows of X
for i in range(len(X)):
# iterate through columns of Y
for j in range(len(Y[0])):
# iterate through rows of Y
for k in range(len(Y)):
result[i][j] += X[i][k] * Y[k][j]
for r in result:
print(r)
# Python rogram to find the SHA-1 message digest of a file
# import hashlib module
import hashlib
def hash_file(filename):
""""This function returns the SHA-1 hash
of the file passed into it"""
# make a hash object
h = hashlib.sha1()
# open file for reading in binary mode
with open(filename,'rb') as file:
# loop till the end of the file
chunk = 0
while chunk != b'':
# read only 1024 bytes at a time
chunk = file.read(1024)
h.update(chunk)
# return the hex representation of digest
return h.hexdigest()
message = hash_file("track1.mp3")
print(message)
# Program to sort alphabetically the words form a string provided by the user
# change this value for a different result
my_str = "Hello this Is an Example With cased letters"
# uncomment to take input from the user
#my_str = input("Enter a string: ")
# breakdown the string into a list of words
words = my_str.split()
# sort the list
words.sort()
# display the sorted words
print("The sorted words are:")
for word in words:
print(word)
# Program to perform different set operations like in mathematics
# define three sets
E = {0, 2, 4, 6, 8};
N = {1, 2, 3, 4, 5};
# set union
print("Union of E and N is",E | N)
# set intersection
print("Intersection of E and N is",E & N)
# set difference
print("Difference of E and N is",E - N)
# set symmetric difference
print("Symmetric difference of E and N is",E ^ N)
#Python Program to Find the Size (Resolution) of a Image
def jpeg_res(filename):
""""This function prints the resolution of the jpeg image file passed into it"""
# open image for reading in binary mode
with open(filename,'rb') as img_file:
# height of image (in 2 bytes) is at 164th position
img_file.seek(163)
# read the 2 bytes
a = img_file.read(2)
# calculate height
height = (a[0] << 8) + a[1]
# next 2 bytes is width
a = img_file.read(2)
# calculate width
width = (a[0] << 8) + a[1]
print("The resolution of the image is",width,"x",height)
jpeg_res("img1.jpg")
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