Question

Function name​: quick_maths()

Parameters: a number (float), a number (float), an operation (string)

Returns: a float

Description: You’re trying to do your math homework, and you realized that you can

write a program to do all the simple operations! The five possible operations are “+”, “-”,

“*”, “/”, and “%”. Based on the operation that is passed in, perform the operation on the

two numerical parameters. The first parameter should always go first in the operation.

Return the result of the operation rounded to two decimal places. If the operation is not

one of the five listed above, return “That operation does not exist!”

Answer 1

Since you have not mentioned the language of your preference, I am providing the code in C++.

CODE

===============

string quick_maths(float a, float b, string operation) {

float result = 0;

switch(operation[0]) {

case '+':

result = a + b;

break;

case '-':

result = a - b;

break;

case '*':

result = a * b;

break;

case '/':

if (b != 0) {

result = a / b;

}

break;

case '%':

result = a - b;

break;

default:

return "That operation does not exist!";

}

return to_string(result);

}