public EquationResultBl CalculateRoots(EquationBl equationBl, double discriminant)
{
var results = new EquationResultBl();
if (discriminant < 0)
{
results.FirstRoot = null;
results.SecondRoot = null;
}
if (discriminant == 0)
{
results.FirstRoot = -equationBl.B / (2 * equationBl.A);
results.SecondRoot = null;
}
if (discriminant > 0)
{
results.FirstRoot = (-equationBl.B + Math.Sqrt(discriminant)) / (2 * equationBl.A);
results.SecondRoot = (-equationBl.B - Math.Sqrt(discriminant)) / (2 * equationBl.A);
}
var equation = new Equation()
{
A = equationBl.A, B = equationBl.B, C = equationBl.C, Discriminant = discriminant, FirstRoot = results.FirstRoot, SecondRoot = results.SecondRoot
};
_discriminantRepository.SaveResults(equation);
return(results);
}
public double DiscriminantCalculate(EquationBl equationBl)
{
var results = new EquationResultBl();
var discriminant = Math.Pow(equationBl.B, 2) - 4 * equationBl.A * equationBl.C;
results.Discriminant = discriminant;
return(discriminant);
}