NUnit.Framework.Constraints.FloatingPointNumerics Class
Helper routines for working with floating point numbers

See Also: FloatingPointNumerics Members


public class FloatingPointNumerics


The floating point comparison code is based on this excellent article:

"ULP" means Unit in the Last Place and in the context of this library refers to the distance between two adjacent floating point numbers. IEEE floating point numbers can only represent a finite subset of natural numbers, with greater accuracy for smaller numbers and lower accuracy for very large numbers.

If a comparison is allowed "2 ulps" of deviation, that means the values are allowed to deviate by up to 2 adjacent floating point values, which might be as low as 0.0000001 for small numbers or as high as 10.0 for large numbers.


Namespace: NUnit.Framework.Constraints
Assembly: NUnitLite (in NUnitLite.dll)
Assembly Versions:,