[Rat] some more trivia

Raku · Jun 25, 2012 · f6edbb6 · f6edbb6
1 parent cfa8f0e
commit f6edbb6
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lib/Rat.pod b/lib/Rat.pod
@@ -28,5 +28,9 @@ the denominator quickly:
     say approx-sqrt(2, 5).WHAT;     # Rat()
     say approx-sqrt(2, 10).WHAT;    # Num()
 
+If you want arbitrary precision arithmetic with rational numbers, use the
+C<FatFat> type instead.
+
+C<Rat> objects are immutable.
 
 =end pod