public void Tan_Int_ReturnInt()
{
// arrange
var sp = new ScalarPrimitives <int, int>();
// action
var result = sp.Tan(2);
// assert
Assert.AreEqual(-2, result);
}
public void Tan_Double_ReturnDouble()
{
// arrange
var sp = new ScalarPrimitives <double, double>();
// action
var result = sp.Tan(Math.PI / 4.0);
// assert
const double Epsilon = 1e-8;
Assert.IsTrue(Math.Abs(1.0 - result) < Epsilon);
}