// Mr. Minich
// CMPSC 201
// Ch. 6 Demo Program #4
// July 21, 2000
// Purpose - to illustrate the use of functions

#include <iostream>
#include <string>
#include <math.h>
using namespace std;


double discriminant(double , double , double );
void printMyName(string myName);

int main()
{
	double a = 0.0;
	double b = 0.0;
	double c = 0.0;

	cout << "Enter a: ";
	cin >> a;
	cout << "Enter b: ";
	cin >> b;
	cout << "Enter c: ";
	cin >> c;

	printMyName("Mr. Minich");
	cout << endl << "The discriminant is " << discriminant(a, b, c) << endl;

	return 0;
}// end of main

double discriminant(double myA, double myB, double myC)
{
	double result = 0.0;

	result = pow(myB, 2) - 4 * myA * myC;
	return result;
}// end of discriminant

void printMyName(string myName)
{
	cout << myName << endl;
}// end of printMyName