A float comparer used by Assert performing approximate comparison.
| kEpsilon | Default epsilon used by the comparer. | 
| s_ComparerWithDefaultTolerance | Default instance of a comparer class with deafult error epsilon and absolute error check. | 
| FloatComparer | Creates an instance of the comparer. | 
| AreEqual | Performs equality check with absolute error check. | 
| AreEqualRelative | Performs equality check with relative error check. |