public void TestArcTan()
{
for (Double x = -18.0; x <= 18.0; x += 0.01)
{
Fixed32 f = x;
Fixed32 fs = Fixed32.ArcTan(f);
Double result = fs.ToDouble();
Double expected = Math.Atan(x);
Assert.That(result,
Is.EqualTo(expected).Within(MathsTests.TestTolerance). // Check that result is within test tolerance for Fixed32
Or.EqualTo(expected).Within(MathsTests.PercentageTolerance * Math.Abs(result))); // or that result is within test percentage for Fixed32.
}
}