--- a/Point.st	Sun Jan 16 04:38:33 1994 +0100
+++ b/Point.st	Sun Jan 16 04:47:41 1994 +0100
@@ -33,7 +33,7 @@
 x              <Number>        the x-coordinate of myself
 y              <Number>        the y-coordinate of myself
 
-$Header: /cvs/stx/stx/libbasic/Point.st,v 1.6 1994-01-09 21:19:21 claus Exp $
+$Header: /cvs/stx/stx/libbasic/Point.st,v 1.7 1994-01-16 03:44:11 claus Exp $
 written 89 by claus
 '!
 
@@ -47,10 +47,14 @@
 !Point class methodsFor:'constants'!
 
 zero
+    "return the neutral element for addition"
+
     ^ PointZero
 !
 
 unity
+    "return the neutral element for multiplication"
+
     ^ PointOne
 ! !