With 5.18post, I also get a noun form:
Maxima version: 5.18post
Maxima build date: 11:8 8/4/2009
host type: i686-pc-mingw32
lisp-implementation-type: Clozure Common Lisp
lisp-implementation-version: Version 1.4-dev (WindowsX8632)
Barton
-----Raymond Toy <toy.raymond at gmail.com> wrote: -----
>I?can?confirm?David's?result.??It?appears?to?be?something?with?the?CVS
>version?since?others?with?earlier?versions?of?maxima?get?the?correct
>answer.
>
>Ray