Question

Create a menu driven program using user defined functions to implement a calculator that performs the following:
a) Basic arithmetic operations $(+,-,\ast ,/)$
b) $lo{g}_{10}\left(x\right),sin\left(x\right),cos\left(x\right)$

Answer 1

a) Basic arithmetic operations

Program:

#Asking for the user input

x = int(input ("Enter the first number : " ) )

y= int(input ("Enter the second number : " ) )

#printing the Menu

print("What would you like to do? " )

print("1. Addition")

print("2.Substraction")

print("3.Multiplication")

print("4.Division")

#Asking user about the arithmetic operation choice

n = int(input("Enter your choice " (1-4) " ))

#Calculation as per input from the user

if n == 1 :

print("The result of addition : " , (x+y))

elif n==2 :

print("The result of substraction : " , (x-y))

elif n==3 :

print("The result of multiplication : " , (x*y))

elif n==4 :

print("The result of division : " , (x/y))

else:

print("Invalid Choice")

b) log10(x), sin(x), cos(x)

Program:

import math

#Providing the Menu to choose

print ( "What would you like to do ?")

print("1. Log10(x)" )

print("2. Sin(x)" )

print("3. Cos(x)" )

#Asking user about the choice

n = int(input("Enter your choice (1-3) : " ))

#Asking thre number on which the operation should be performed

x = int(input( "Enter vlue of x : " ))

#Calculation as per input from the user

if n == 1 :

print("Log of" , (x) , "with base 10 is ", math.log10(x))

elif n == 2 :

print("Sin(x) is " , math.sin(math.radians(x)))

elif n == 3 :

print("Cos(x) is " , math.cos(math.radians(x)))

else:

print("Invalid Choice")