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Author: DheerajKN

Assignment1.py

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+def add(x, y):
+   print(a,"+",b,"=", x+y);
+
+def subtract(x, y):
+   print(a,"-",b,"=", x-y);
+
+def multiply(x, y):
+   print(a,"+",b,"=", x*y);
+
+def divide(x, y):
+   print(a,"+",b,"=", x/y);
+   
+m = 'y'
+
+while m == 'y' or m == 'Y':
+  print("Calculator")
+  print("1.Addition")
+  print("2.Subtraction")
+  print("3.Multiplication")
+  print("4.Division")
+  choice=input("Enter your Choice: ")
+
+  if choice == '1':
+      a=float(input('Enter value of a: '))
+      b=float(input('Enter value of b: '))
+      add(a,b)
+      m=input('Do you want to restart the calculator: ')
+
+  elif choice == '2':
+      a=float(input('Enter value of a: '))
+      b=float(input('Enter value of b: '))
+      subtract(a,b)
+      m=input('Do you want to restart the calculator: ')
+
+  elif choice == '3':
+      a=float(input('Enter value of a: '))
+      b=float(input('Enter value of b: '))
+      multiply(a,b)
+      m=input('Do you want to restart the calculator: ')
+      
+  elif choice == '4':
+      a=float(input('Enter value of a: '))
+      b=float(input('Enter value of b: '))
+      divide(a,b)
+      m=input('Do you want to restart the calculator: ')
+
+  else:
+   print("Invalid input")

Assignment2.py

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+import math
+class Complex:
+        
+	def __init__(self, r=0, i=0):
+		self.r = r
+		self.i = i
+		
+	def __add__(self, n):
+		return Complex(self.r + n.r, self.i + n.i)
+
+	def __sub__(self, n):
+		return Complex(self.r - n.r, self.i - n.i)
+
+	def __mul__(self, n):
+		real = (self.r*n.r - self.i*n.i)
+		imag = (self.r*n.i + self.i*n.r)
+		return Complex(real, imag)
+
+	def __div__(self, n):
+		real = (self.r*n.r + self.i*n.i)/(n.r**2 + n.i**2)
+		imag = (self.i*n.r - self.r*n.i)/(n.r**2 + n.i**2)
+		return Complex(real, imag)
+
+	def __abs__(self):
+		return (math.sqrt(self.r**2 + self.i**2))
+
+	def __str__(self):
+
+		if (self.i == 0):
+			return ("%.2f" %(self.r))
+		elif (self.r == 0):
+			return ("%.2fi" %(self.i))
+		else:
+			if (self.i > 0):
+				return ("%.2f + %.2fi" %(self.r, self.i))
+			elif (self.i < 0):
+				return ("%.2f - %.2fi" %(self.r, -1*self.i))
+
+re_1 = float(input("Enter real part of first number : "))
+img_1 = float(input("Enter imaginary part of first number : "))
+re_2 = float(input("Enter real part of second number : "))
+img_2 = float(input("Enter imaginary part of second number : "))
+
+x = Complex(re_1, img_1)
+y = Complex(re_2, img_2)
+
+add = x + y
+sub = x - y
+mul = x * y
+div = x.__div__(y)
+modx = x.__abs__()
+mody = y.__abs__()
+print (add)
+print (sub)
+print (mul)
+print (div)
+print ("%.2f" %(modx))
+print ("%.2f" %(mody))

Binary_Search.py

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+def binarySearch(alist, item):
+    first=0
+    last=len(alist)-1
+    found = False
+
+    while first<=last and not found:
+        midpoint=(first+last)//2
+        if alist[midpoint]==item:
+            found =True
+        else:
+            if item<alist[midpoint]:
+                last=midpoint-1
+            else:
+                first=midpoint+1
+    return found
+print("Enter the number to search")
+num=int(input())
+alist=[0, 1, 2, 8, 13, 17, 19, 32, 42,]
+z=(binarySearch(alist,num))
+if z==True:
+    print("Number is present in the list")
+else:
+    print("Number is not present in the list")

Even.py

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+option='y'
+while option=='y':
+    print("Enter the number")
+    num=int(input())
+    if(num%2==0):
+        print(str(num)+" is an even number")
+    else:
+        print(str(num)+" is a odd number")
+    print("Do you want to continue?(y/n)")
+    option=input()
+print('Thank you for using this programme')

Factorial_Iteration.py

@@ -0,0 +1,12 @@
+option='y'
+while option=='y':
+    print("Enter the number whose factorial to find")
+    num=int(input())
+    fac=1
+    while(num!=1):
+        fac=fac*num
+        num=num-1
+    print("Factorial is "+str(fac))
+    print("Do you want to continue?(y/n)")
+    option=input()
+print('Thank you for using this programme')

Factorial_Recursion.py

@@ -0,0 +1,15 @@
+option='y'
+while option=='y':
+    def factorial(n):
+        if n == 1:
+            return 1
+        else:
+            return n * factorial(n-1)
+
+    print("Enter the number whose factorial to find")
+    num=int(input())
+
+    print(factorial(num))
+    print("Do you want to continue?(y/n)")
+    option=input()
+print('Thank you for using this programme')

Fibonacci_Iteration.py

@@ -0,0 +1,19 @@
+option='y'
+while option=='y':
+    def fibo(n):
+        a=0
+        b=1
+        for i in range(0,n):
+            temp=a
+            a=b
+            b=temp+b
+        return a
+
+    print("Enter the limit of fibonacci series")
+    num=int(input())
+
+    for c in range(0,num):
+        print (fibo(c))
+    print("Do you want to continue?(y/n)")
+    option=input()
+print('Thank you for using this programme')

Fibonacci_Recursion.py

@@ -0,0 +1,24 @@
+option='y'
+while option=='y':
+   def recur_fibo(n):
+      """Recursive function to
+      print Fibonacci sequence"""
+      if n <= 1:
+          return n
+      else:
+          return(recur_fibo(n-1) + recur_fibo(n-2))
+
+
+   # take input from the user
+   nterms = int(input("How many terms? "))
+
+   # check if the number of terms is valid
+   if nterms <= 0:
+      print("Please enter a positive integer")
+   else:
+      print("Fibonacci sequence:")
+      for i in range(nterms):
+          print(recur_fibo(i))
+      print("Do you want to continue?(y/n)")
+      option=input()
+print('Thank you for using this programme')

First.py

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+def Multiply(x,y):
+    z = x * y
+    print("Answer: ",z)
+
+def Divide(x,y):
+    if y != 0:
+    	z = x / y
+    	print("Answer: ",z)
+    else:
+    	print("Division by 0 is not defined")
+
+def Add(x,y):
+    z = x + y
+    print("Answer: ",z)
+
+def Subtract(x,y):
+    z = x - y
+    print("Answer: ",z)
+
+ch = "y"
+
+while ch == "Y" or ch == "y":
+
+    operation = input("What would you like to do?\n1.Add\n2.Subtract\n3.Multiply\n4.Divide ")
+    
+    if operation == "1":
+        x = float(input("First number: "))
+        y = float(input("Second number: "))
+        Add(x,y)    
+    elif operation == "2":
+        x = float(input("First number: "))
+        y = float(input("Second number: "))
+        Subtract(x,y)
+    elif operation == "3":
+        x = float(input("First number: "))
+        y = float(input("Second number: "))
+        Multiply(x,y)
+    elif operation == "4":
+        x = float(input("First number: "))
+        y = float(input("Second number: "))
+        Divide(x,y)
+    else:
+        print("Wrong Input")
+    ch = input("Would you like to continue ? y/n") 

Largest.py

@@ -0,0 +1,18 @@
+option='y'
+while option=='y':
+    print("Enter first number")
+    num1=int(input())
+    print("Enter second number")
+    num2=int(input())
+    print("Enter third number")
+    num3=int(input())
+    if(num1>=num2&num1>=num3):
+        print(str(num1)+" is largest among these numbers")
+    elif(num2>=num1&num2>=num3):
+        print(str(num1)+" is largest among these numbers")
+    else:
+        print(str(num3)+" is largest among these numbers")
+    print("Do you want to continue?(y/n)")
+    option=input()
+print('Thank you for using this programme')
+

MiniAssignment.py

@@ -0,0 +1,111 @@
+import pygame, random, sys
+from pygame.locals import *
+pygame.init()
+
+window_height=500 
+window_width=500
+
+black = (0,0,0)
+green = (0, 255, 0)
+fps = 20
+speed = 10
+font = pygame.font.SysFont(None, 28)
+mainClock = pygame.time.Clock()
+
+Canvas = pygame.display.set_mode((window_width,window_height))
+pygame.display.set_caption('MINI PROJECT')
+
+pygame.display.update()
+
+ballimage = pygame.image.load('ball.png')
+ballrect = ballimage.get_rect()
+
+
+while True:
+    moveup = movedown = moveright = moveleft = False
+    ballrect.centerx = ballrect.centery = 250
+    
+    while True:      
+        for event in pygame.event.get():
+            if event.type == KEYDOWN:
+                if event.key == K_UP:
+                    moveup = True
+                    
+                if event.key == K_DOWN:
+                    movedown = True
+                    
+                if event.key == K_LEFT:
+                    moveleft = True
+
+                if event.key == K_RIGHT:
+                    moveright = True
+                    
+                if event.key == K_ESCAPE:  
+                    pygame.quit()          
+                    sys.exit()
+                    
+
+            if event.type == KEYUP:
+
+                if event.key == K_UP:
+                    moveup = False
+                    
+                if event.key == K_DOWN:
+                    movedown = False
+
+                if event.key == K_LEFT:
+                    moveleft = False
+                    
+                if event.key == K_RIGHT:
+                    moveright = False
+
+        if (moveup and (ballrect.top > 0)):
+            ballrect.top-= speed
+        if (movedown and (ballrect.bottom < 500)):
+            ballrect.bottom += speed
+        if (moveleft and (ballrect.left > 0)):
+            ballrect.left -= speed
+        if (moveright and (ballrect.right < 500)):
+                ballrect.right += speed
+
+        x = str(ballrect.centerx)
+        y = str(ballrect.centery)
+        t = ','
+        m = '('
+        n = ')'
+
+        
+        pos_x = font.render(x, 1, green)
+        pos_y = font.render(y, 1, green)
+        pos_c = font.render(t, 1, green)
+        pos_m = font.render(m, 1, green)
+        pos_n = font.render(n, 1, green)
+
+
+        pos_xrect = pos_x.get_rect()
+        pos_yrect = pos_y.get_rect()
+        pos_crect = pos_c.get_rect()
+        pos_mrect = pos_m.get_rect()
+        pos_nrect = pos_n.get_rect()
+
+        pos_xrect.topleft = (10, 10)
+        pos_crect.topleft = (45, 10)
+        pos_yrect.topleft = (50, 10)
+        pos_mrect.topleft = (5, 10)
+        pos_nrect.topleft = (85, 10)
+                
+        Canvas.fill(black)
+        Canvas.blit(pos_x, pos_xrect)
+        Canvas.blit(pos_c, pos_crect)
+        Canvas.blit(pos_y, pos_yrect)
+        Canvas.blit(pos_m, pos_mrect)
+        Canvas.blit(pos_n, pos_nrect)
+    
+        
+        Canvas.blit(ballimage, ballrect)
+        pygame.display.update()
+
+        mainClock.tick(fps)
+    
+
+pygame.display.update()