public void TestEx1(double x, double k, double expectedResult, double expectedIterations, double delta = Delta)
{
var a = Ex1.F1(x, k);
if (delta == -1)
{
Assert.AreEqual(expectedResult, a[0]);
}
else
{
Assert.AreEqual(expectedResult, a[0], delta);
}
Assert.AreEqual(expectedIterations, a[1]);
}