Friday 10 September 2021

PROBLEM SOLVING IN PYTHON 2 (NUMBER CONVERSION IN PYTHON)


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DIFFERENENT CONVERSION METHODS

FOR HEXA, OCTA AND BINARY



In this write-up, we have shared different methods for converting numbers from one base to the other

1. CONVERT A SINGLE DECIMAL NUMBER TO HEXADECIMAL

def Hex(n):

       h = (n % 16)

       hex_nums = "0123456789ABCDEF"

       h1 = n // 16

       if (h1 == 0):

       return hex_nums[h]

return Hex(h1) + hex_nums[h]

for i in range (0, 255):

print (Hex(i))


2. CONVERT A SINGLE DECIMAL NUMBER TO BINARY


def Bin(n):

      b = (n % 2)

       bin_nums = "01"

       b1 = n // 2

         if (b1 == 0):

          return bin_nums[b]

return Bin(b1) + bin_nums[b]

for i in range (0, 3):

print (Bin(i))





3. CONVERT A SINGLE DECIMAL NUMBER TO OCTAL

def Oct(n):

o_c = (n % 8)

oct_nums = "01234567"

o_c1 = n // 8

          if (o_c1 == 0):

          return bin_nums[o_c]

return Bin(o_c1) + oct_nums[o_c]

for i in range (0, 10):

print (Oct(i))

4. ANOTHER METHOD HEXADECIMAL CONVERSION

def main():

        result = int(input("Enter a whole, positive, 
number to be converted to hexadecimal: "))

        hexadecimal = ""

        while result != 0:

                 remainder = changeDigit(result % 16)

                 hexadecimal = str(remainder) + hexadecimal

                 result = int(result / 16)

                print(hexadecimal)


def changeDigit(digit):

decimal =     [10 , 11 , 12 , 13 , 14 , 15 ]

hexadecimal = ["A", "B", "C", "D", "E", "F"]

for counter in range(7):

          if digit == decimal[counter - 1]:

         digit = hexadecimal[counter - 1]

          return digit

main()












5. THIS METHOD TAKES BASE, RANGE AS INPUT AND 
CONVERT AT ONCE


def HEX2():

       a= int(input('Enter start:\t'))

       e= int(input('Enter end:\t'))

      d= int(input('Enter base:\t'))

       for i in range (a, e):

                b = ""

                 while i != 0:

                             x = '0123456789ABCDEF'

                              c = i % d

                               c1 = x[c]

                                b = str(c1) +  b

                                 i = int(i // d)

                                 print(b)

HEX2()
















6. TAKES ANY DECIMAL NUMBER AND CONVERT TO ANY GIVEN BASE



def HEX2():

           a= int(input('Enter decimal number: \t'))

            d= int(input('Enter expected base: \t'))
             b = ""

             while a != 0:

                    x = '0123456789ABCDEF'

                     c = a % d

                     c1 = x[c]

                      b = str(c1) + b

                       a = int(a // d)

                       print(b)

HEX2()














7. THIS METHOD REQUIRES INPUT RANGE

def HEX2():

          for a in range (0, 256):

                   b = ""

                  while a != 0:

                         x = '0123456789ABCDEF'

                          c = a % 16

                           c1 = x[c]

                           b = str(c1) + b

                            a = int(a // 16)

                             print(b)

HEX2()
















8. TAKES JUST THE NUMBER TO CONVERT  AND 
THE BASE AND DISPLAY ON GUI

import tkinter as tk

from tkinter import*

import time

def HEX2():

          a = int(name_sE.get())

           d = int(name_sE2.get())

           b = ""

while a != 0:

          x = '0123456789ABCDEF'

           c = a % d

           c1 = x[c]

           b = str(c1) + b

           a = int(a // d)

          #print(b)

 T.delete(1.0, END)

T.insert(END, b)

def clear_text():

         name_sE.delete(0, 'end')

         name_sE2.delete(0, 'end')

        return

 myApp = tk.Tk()

myApp.title("Designed by Grace Samson (2017)")

myApp.geometry("500x300+0+0")

Tops =Frame(myApp, width=300, height = 60, bg ="blue", relief=SUNKEN)

Tops.pack(side = TOP)

f1 =Frame(myApp, width=500, height = 200, relief=SUNKEN)

f1.pack(side = LEFT)

f2 =Frame(myApp, width=500, height = 200, relief=SUNKEN)

f2.pack(side = RIGHT)

d_time = time.asctime(time.localtime(time.time()))

lbl1= Label(Tops, font=("arial", 14, "bold"),
 text= "NUMBER SYSTEM CONVERTER", fg="Steel Blue", bd= 10)  

lbl1.grid(row=0, column=0)

lbl1= Label(Tops, font=("arial", 8, "bold"), text= d_time, fg="Steel Blue", bd= 10)  

lbl1.grid(row=1, column=0)

#signup_bt = Button(Tops, text = 'CONVERSION', 
# font=("arial", 12, "bold"), width = 15, command =conv_detail)

#signup_bt.grid(row=3, column=1)

inst2  = Label(f1, font=("arial", 12, "bold"), 
text ='ENTER NUMBER AND BASE FOR CONVERSION', fg ='RED')

inst2.grid(row = 0, column=0, sticky=E)

namelbls = Label(f1, font=("arial", 10, "bold"), text ='NUMBER: ')

namelbls.grid(row = 3, column=0, sticky=W)

name_sE = Entry(f1)

name_sE.grid(row = 3, column = 0)

#name_sE.bind('<Return>', HEX2)

namelbls2 = Label(f1, font=("arial", 10, "bold"), text ='BASE: ')

namelbls2.grid(row = 4, column=0, sticky=W)

name_sE2 = Entry(f1)

name_sE2.grid(row = 4, column = 0)

#name_sE2.bind('<Return>', HEX2)

conv_bt = Button(f1, text = 'CONVERT',  font=("arial", 10, "bold"), 
width = 10, fg = 'blue', command =HEX2)

conv_bt.grid(columnspan=2, sticky=W)

reset_bt = Button(f1, text = 'RESET',  font=("arial", 10, "bold"), 
width = 8, fg = 'blue', command =clear_text)

reset_bt.grid(columnspan=2, sticky=W)

S = Scrollbar(f2)

T = Text(f2, height=10, width=50)

S.pack(side=RIGHT, fill=Y)

T.pack(side=LEFT, fill=Y)

S.config(command=T.yview)

T.config(yscrollcommand=S.set)

##if __name__ == __"main"__:

##        Main()

myApp.mainloop()

















9. TAKES BASE, RANGE AS INPUT AND 
CONVERT AT ONCE WHILE DISPLAYING ON GUI


import tkinter as tk

from tkinter import*

import time

def HEX2():

          a = int(name_sE.get())

           d = int(name_sE2.get())

           b = ""

while a != 0:

          x = '0123456789ABCDEF'

           c = a % d

           c1 = x[c]

           b = str(c1) + b

           a = int(a // d)

          #print(b)

 T.delete(1.0, END)

T.insert(END, b)


def clear_text():

         name_sE.delete(0, 'end')

         name_sE2.delete(0, 'end')

        return

 myApp = tk.Tk()

myApp.title("Designed by Grace Samson (2017)")

myApp.geometry("500x300+0+0")

Tops =Frame(myApp, width=300, height = 60, bg ="blue", relief=SUNKEN)

Tops.pack(side = TOP)

f1 =Frame(myApp, width=500, height = 200, relief=SUNKEN)

f1.pack(side = LEFT)

f2 =Frame(myApp, width=500, height = 200, relief=SUNKEN)

f2.pack(side = RIGHT)

d_time = time.asctime(time.localtime(time.time()))

lbl1= Label(Tops, font=("arial", 14, "bold"), 
text= "NUMBER SYSTEM CONVERTER", 
fg="Steel Blue", bd= 10)  

lbl1.grid(row=0, column=0)

lbl1= Label(Tops, font=("arial", 8, "bold"), text= d_time, fg="Steel Blue", bd= 10)  

lbl1.grid(row=1, column=0)

#signup_bt = Button(Tops, text = 'CONVERSION',  font=("arial", 12, "bold"), 
width = 15, command =conv_detail)

#signup_bt.grid(row=3, column=1)

inst2  = Label(f1, font=("arial", 12, "bold"), 
text ='ENTER NUMBER AND BASE FOR CONVERSION', fg ='RED')

inst2.grid(row = 0, column=0, sticky=E)

namelbls = Label(f1, font=("arial", 10, "bold"), text ='NUMBER: ')

namelbls.grid(row = 3, column=0, sticky=W)

name_sE = Entry(f1)

name_sE.grid(row = 3, column = 0)

#name_sE.bind('<Return>', HEX2)

namelbls2 = Label(f1, font=("arial", 10, "bold"), text ='BASE: ')

namelbls2.grid(row = 4, column=0, sticky=W)

name_sE2 = Entry(f1)

name_sE2.grid(row = 4, column = 0)

#name_sE2.bind('<Return>', HEX2)

conv_bt = Button(f1, text = 'CONVERT',  font=("arial", 10, "bold"), 
width = 10, fg = 'blue', command =HEX2)

conv_bt.grid(columnspan=2, sticky=W)

reset_bt = Button(f1, text = 'RESET',  font=("arial", 10, "bold"), 
width = 8, fg = 'blue', command =clear_text)

reset_bt.grid(columnspan=2, sticky=W)

S = Scrollbar(f2)

T = Text(f2, height=10, width=50)

S.pack(side=RIGHT, fill=Y)

T.pack(side=LEFT, fill=Y)

S.config(command=T.yview)

T.config(yscrollcommand=S.set)

##if __name__ == __"main"__:

##        Main()

myApp.mainloop()




10. CONVERTING BACK FROM ANY BASE TO DECIMAL

    s = 0

    a = (input('enter num: ')).upper()

    b = int(input('enter base: '))

    for pos, digit in enumerate(a[-1::-1]):

        s= (int(digit) * (b**pos)) + s

    print(s)





    11. CONVERTING BACK FROM BINARY TO DECIMAL

    binary = input('enter a number: ')

    b = int(input('enter base: '))

    decimal = 0

    for digit in binary:

        decimal = decimal*b + int(digit)

        print(decimal)






        12. CONVERTING BACK FROM ANY BASE TO DECIMAL
     def todec():

          c = int(input('Enter base of the number to convert to decimal:\t'))

          a = (input('Then enter the number:\t ')).upper()

          b = list(a)

          s = 0

          x = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F']

          for pos, digit in enumerate(b[-1::-1]):

                 y = x.index(digit)

                  if int(y)/c >= 1:

                       print('Invalid input!!!')

                       break

                       s = (int(y) * (c**pos)) + s

                       return (s)

todec()

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AGE GENERATOR IN PYTHON












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THIS PROGRAM TAKE PEOPLES AGES AS INPUT AND PRINT OUT THE SUM OF THE EVEN AGES





print(colored('###################################################', 'red'))

print("program that sums value of age")

x = int(input("enter the total persons: \n"))

print("we want to find the average of  ",  x, "  workers\n")

def getage():

        a = 0

         k = 0

         k2 = 0

         while a < x:

               a = a + 1

               name = input("What's your name? ")

                 age = int(input("Your age? "))

                 print(colored("Nice to meet you " + name + "!", 'blue'))

                 if age % 2 == 0:

                 print("your age is even:\n")

                 k = k + age

                  elif age % 2 != 0:

                            print("your age is odd:\n")

                            k2 = k2 + age

                      else:

                            print("please enter only numbers\n")

                              print(colored("The sum of the even ages = {}".format(k), 'green'))

                              print("and the average = ", k/x, "\n")

                               print(colored("But the sum of the odd ages = {}".format( k2), 'green'))

                               print("and the average = ", k2/x, "\n")

getage()

print("Thanks and goodbye")






















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