diff --git a/Source/FloatHelper.cs b/Source/FloatHelper.cs
index 431eb96..ff27a1b 100644
--- a/Source/FloatHelper.cs
+++ b/Source/FloatHelper.cs
@@ -26,8 +26,21 @@ namespace Nuclex.Support {
/// Helper routines for working with floating point numbers
///
- /// The floating point comparison code is based on this excellent article:
- /// http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm
+ ///
+ /// The floating point comparison code is based on this excellent article:
+ /// http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm
+ ///
+ ///
+ /// "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 on the lower end of the range 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.
+ ///
///
public static class FloatHelper {
@@ -85,7 +98,7 @@ namespace Nuclex.Support {
/// True if both numbers are equal or close to being equal
///
///
- /// Floating point values can only represent a limited series of natural numbers.
+ /// Floating point values can only represent a finite subset of natural numbers.
/// For example, the values 2.00000000 and 2.00000024 can be stored in a float,
/// but nothing inbetween them.
///