public void TestCase()
{
double wait = -0.5;
double real = QuadricEquation.Solver(2, 3, 1, 1);
Assert.AreEqual(wait, real, 0.1);
}
private static void MenuForQuadEquation()
{
double a, b, c, d, x1, x2;
Output.Print("Hello, I can solve equation: ax^2+bx+c=0.\n");
Output.Print("Input a:");
a = CorrectInteger();
Output.Print("Input b:");
b = CorrectInteger();
Output.Print("Input d:");
c = CorrectInteger();
if (a != 0)
{
d = b * b - 4 * a * c;
if (d > 0)
{
x1 = QuadricEquation.Solver(a, b, d, 1);
x2 = QuadricEquation.Solver(a, b, d, -1);
Output.Print("\nThere are two decisions:");
Output.Print("\nx1 = " + x1);
Output.Print("\nx2 = " + x2);
}
else if (d == 0)
{
x1 = QuadricEquation.Solver(a, b, d, 1);
Output.Print("\nThere are two decisions but they are the same:");
Output.Print("\nx1 = x2 = " + x1);
}
else
{
Output.Print("\nNo decision!");
}
}
else
{
Output.Print("\nA can't equals 0!!!");
}
}