lobalSettings.DefaultFloatingPointTolerance</b>. If this is not
	set, a tolerance of 0.0d is used.
<li><p>Prior to NUnit 2.2.3, comparison of two NaN values would always fail,
    as specified by IEEE floating point standards. The new behavior, was
	introduced after some discussion becuase it seems more useful in tests.
	To avoid confusion, consider using <b>Is.NaN</b> where appropriate.
<li><p>When an equality test between two strings fails, the relevant portion of
	of both strings is displayed in the erro