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*From*: mathgroup-adm at christensen.cybernetics.net*Date*: Sat, 15 Apr 1995 14:28:02 -0500*Apparently-to*: <wri-mathgroup at wri.com>*Apparently-to*: <ianc at wri.com>*Apparently-to*: <jeffa at wri.com>

Jack's questions below prompted me to begin a package to deal with your issues (1) and (2). It's now at the stage where it works, but isn't pretty. Anyone who is interested is welcome to a copy of it when it's done. --Lou Talman Begin forwarded message: > Date: Wed, 5 Apr 1995 10:03:45 -0400 (EDT) >From: Jack Goldberg <jackgold at math.lsa.umich.edu> >To: mathgroup at christensen.cybernetics.net >Subject: [mg644] list of Mma commands with specified properties Hi Group; A student asked me "Which Mma commands have the option of allowing Trig->False so that she could set Trig->True?" This question raises a more general issue which I pose to you in the form of two questions: (1) How does one ask for a list of commands which have a specified option such as Trig->False ? (I won't clutter cyberspace with my makeshift solution, since I'll bet there is a "professional" way to do it.) (2) Same question for attributes, say for instance, Listable? Another student asked this question (actually it was me): (3) Is there a way of forcing the front end to produce output in MatrixForm in a given Mma session rather than a list of lists (of equal length) as it does now? This is of value when one knows in advanced that a particular session will be dealing entirely with matrices. Jack