--- a/LazyArray.st	Fri Oct 14 00:10:27 2016 +0200
+++ b/LazyArray.st	Fri Oct 14 00:15:23 2016 +0200
@@ -20,7 +20,9 @@
 
 documentation
 "
-    An Array which computes its value lazily (on demand) and remembers those values.
+    An Array which computes its values lazily (on demand) and remembers them.
+    Useful if it is relatively expensive to compute an element, 
+    and it may be needed again later.
 
     [author:]
         Claus Gittinger (cg@alan)