public void Acos_Int_ReturnInt()
{
// arrange
var sp = new ScalarPrimitives <int, int>();
// action
var result = sp.Acos(-1);
// assert
Assert.AreEqual(3, result);
}
public void Acos_Double_ReturnDouble()
{
// arrange
var sp = new ScalarPrimitives <double, double>();
// action
var result = sp.Acos(0);
// assert
const double Epsilon = 1e-8;
Assert.IsTrue(Math.Abs(1.5707963267949 - result) < Epsilon);
}