Re: Axiom: Printing multiple variables in axiom.

On Monday 12 November 2007 08:45, you wrote:
> "Bill Page" <[email protected]> writes:
> > Why do you write 'unparse(y::INFORM)' ? Do you mean you literally want
> > to output a ' * ' character for multiplication? If so, I think there
> > must be a better way than this ...
>
> I guess that Constantine also wants 1-dimensional output. I.e., x^2 instead
> of
>
>  2
> x
>
> But I'm not sure.


Yes, that's correct. It would be helpful to obtain one-dimensional output 
(ala Maxima with display2d : false) that can be pasted as is, in other axiom 
functions, and run correctly.


>
> Of course, the real solution would be to overwrite the coercion to
> OutputForm in Expression.  But that's probably too much to ask for from
> Constantine, and I don't have the time to play around with that.
>
> Constantine, I believe that mainly the trig functions get "funny" names. 
> You could first get a string with
>
>    str := unparse(y::INFORM)
>
> and then use
>
>    pos := position("DCOS", str, 1)
>    if pos > 0 then replace(str,pos..pos+3,"cos")
>
> to replace the names you dislike.


I was thinking of defining

DCOS(x) == cos(x)
DSIN(x) == sin(x)
etc.

Regards,

C. Frangos.