Grant Griffin <grant.griffin@honeywell.com>:

Clarify that invert() is a *bitwise* operation.

Doc/lib/liboperator.tex

@@ -58,8 +58,9 @@ Return the absolute value of \var{o}.
 \funcline{invert}{o}
 \funcline{__inv__}{o}
 \funcline{__invert__}{o}
-Return the inverse of \var{o}.  The names \function{invert()} and
-\function{__invert__()} were added in Python 2.0.
+Return the bitwise inverse of the number \var{o}.  The names
+\function{invert()} and \function{__invert__()} were added in Python
+2.0.
 \end{funcdesc}
 
 \begin{funcdesc}{lshift}{a, b}