Math Functions : Beginner's Level

In this blog post, we will see how can we create simple Mathematics functions by using python programming Language, so here we go...

#You can add comments in the below code and share it in the comment box :)
#comments make the code easy to understand

def add(a,b):
 return(a+b)

def sub(a,b):
 return(a-b)

def div(a,b):
 if a == b:
  return 1
 elif b == 0:
  return ("Math Error: division by zero")
 else:
  return(float(a//b))

def mult(a,b):
 return(a*b)

def power(a,b):
 c = 1
 for p in range(0,b):
  c *= a
 return(c)

def main():

  
  print("-------------------------------------------")
  print("The available functions are the following: ")
  print("1-Addition\n2-Subtraction\n3-Division\n4-Multiplication\n5-Power")
  
  counter = 0
  while(counter < 20):
    print("-------------------------------------------")
    print("")
    option = input("Enter the number from 1-5 corresponding to the above functions: ")
   if option == 1:
    
    print("So, you want to perform Addition" )
    num1 = int(input("Please enter any number: "))
    num2 = int(input("Please enter another number: "))
    print("The addition of " + str(num1) + " and " + str(num2) + " = " )
    print(add(num1,num2))

   elif option == 2:
    
    print("So, you want to perform Subtraction" )
    num1 = int(input("Please enter any number: "))
    num2 = int(input("Please enter another number: "))
    print("The subtraction of " + str(num1) + " and " + str(num2) + " = ")
    print(sub(num1,num2))

   elif option == 3:
    
    print("So, you want to perform Division" )
    num1 = int(input("Please enter any number: "))
    num2 = int(input("Please enter another number: "))
    print("The division of " + str(num1) + " and " + str(num2) + " = ")
    print(div(num1,num2))

   elif option == 4:
    
    print("So, you want to perform Multiplication" )
    num1 = int(input("Please enter any number: "))
    num2 = int(input("Please enter another number: "))
    print("The multiplication of " + str(num1) + " and " + str(num2) + " = ")
    print(mult(num1,num2))

   elif option == 5:
    
    print("So, you want to take Power" )
    num1 = int(input("Please enter any number: "))
    num2 = int(input("Please enter another number: "))
    print("The power of " + str(num1) + " to " + str(num2) + " = ")
    print(power(num1,num2))

   else:
   print("Invalid Input!")

  

  counter = counter + 1

main()