[Maxima] keyword names that can't be set in maxima

[Albert Reiner]

["Stavros Macrakis" <macrakis at alum.mit.edu>, Fri, 16 Feb 2007 11:44:23 -0500]:
> On 2/16/07, Richard Fateman <fateman at cs.berkeley.edu> wrote:
> > I would find it handy if I could declare certain names to be not
> > settable....

For what I have been using to this end, cf. define_constant() in
<http://tph.tuwien.ac.at/~areiner/20070115-0/mx,util/utilities.max>.

> (I suppose we could use unary prefix colon if it always appears in
> syntactic contexts like (:foo=3, :bar=3), but that doesn't sound
> appealing)

Especially, as one would also want, e.g., the optional 'bottomup
argument to scanmap().

Regards,

Albert.