Question

Write a program to accept two numbers and an operator and print the functions of a simple calculator.​

Answer 1

$\texttt{\textsf{\large{\underline{Solution}:}}}$

The given co‎‎de is written in Python.

a=int(input('Enter a number: '))

b=int(input('Enter another number: '))

c=input("Enter an operator [+, -, *, /']: ")

if c in '+-*/%':

   print('Result is:',eval('{}{}{}'.format(a,c,b)))

else:

   print('Invalid Input.')

The problem is solved using eval() function. eval() returns the result after evaluation from the expression.

Consider the values -

> a = 5

> b = 6

> c = '+'

eval("{}{}{}".format(a,c,b))

= eval("5+6")

= 11 as sum of 5 and 6 is 11.

In this way, the problem is solved.