Practica 15 - Raices

// Program: raices.cc
// Author:  Yoan Pinzon
// Date:    Agosto 30, 2006

#include <iostream>

using namespace std;

int main()
{
   float a, b, c, d, x1, x2;

   cout << "Calculo de Raices para Ax^2 + Bx + C = 0" << endl;
   cout << "========================================" << endl;

   cout << "Entre el valor de A = "; cin >> a;
   cout << "Entre el valor de B = "; cin >> b;
   cout << "Entre el valor de C = "; cin >> c;

   d = ( b * b ) - ( 4 * a * c ); // discriminante

   x1 = -b + sqrt( d ); x1 /= 2 * a;
   x2 = -b - sqrt( d ); x2 /= 2 * a;

   cout << endl;

   cout << "Las raices de \""
        << a << "x^2 +" << ( b<0? "\b" : " " )
        << b << "x +" << ( c<0? "\b" : " " )
        << c << " = 0\" son:" << endl;

   cout << "X1 = " << x1 << endl;
   cout << "X2 = " << x2 << endl;

   return 0;
}