static void AssertEqualWithinReason (Vector4 a, Vector4 b)
{
Single tolerance; MathsTests.TestTolerance(out tolerance);
Assert.That(a.X, Is.EqualTo(b.X).Within(tolerance));
Assert.That(a.Y, Is.EqualTo(b.Y).Within(tolerance));
Assert.That(a.Z, Is.EqualTo(b.Z).Within(tolerance));
Assert.That(a.W, Is.EqualTo(b.W).Within(tolerance));
}