public void CheckImaginaryRootsReturnNaN()
{
int a = 342563, b = -834, c = 22034;
var roots = QuadraticEquationAnalysisFunctions.ComputeRoots(a, b, c);
Assert.AreEqual(roots.Count(root => Double.IsNaN(root)), 2);
}
public void CheckDiscriminantIsCorrect()
{
int a = 92347, b = -3252, c = 1432;
var discriminant = QuadraticEquationAnalysisFunctions.ComputeDiscriminant(a, b, c);
Assert.AreEqual(-518388112, discriminant);
}
public QuadraticEquation CovertToQuadraticEquation()
{
return(new QuadraticEquation(
new List <int>()
{
ATerm, BTerm, CTerm
},
QuadraticEquationAnalysisFunctions.ComputeRoots(ATerm, BTerm, CTerm)));
}
public void CheckRealRootsAreCalculatedCorrectly()
{
int a = 958, b = -324, c = -902;
var exceptedRoots = new List <double>()
{
-0.816, 1.154
};
var roots = QuadraticEquationAnalysisFunctions.ComputeRoots(a, b, c).Select(root => Math.Round(root, 3)).ToList();
CollectionAssert.AreEquivalent(exceptedRoots, roots);
}
