--- a/Float.st	Sat Nov 23 17:01:52 2019 +0100
+++ b/Float.st	Sat Nov 23 17:02:29 2019 +0100
@@ -919,7 +919,8 @@
 
 epsilon
     "return the maximum relative spacing of instances of mySelf
-     (i.e. the value-delta of the least significant bit)"
+     (i.e. the value-delta of the least significant bit).
+     see https://en.wikipedia.org/wiki/Machine_epsilon"
 
     Epsilon isNil ifTrue:[
         Epsilon := self computeEpsilon.