On 6/1/07, Joel B. Mohler <[EMAIL PROTECTED]> wrote:
>
>
> On Thursday 31 May 2007 20:24, Bobby Moretti wrote:
> > This is an example of trying to err on the side of being overly correct
> for
> > our output. For example, if you input
> >
> > sage: sqrt(2)*5
> >
> > it will get simplified to 5*sqrt(2). But this relies on the behavior of
> > maxima's simplification. \sqrt{2} \cdot 5 is much better than \sqrt{2}5,
> > which is what could happen if we left the cdot out in all cases.
> >
> > I think the solution is to use some logic to remove the \cdot in some
> > cases, but leave it there in others. For example, juxtaposing two
> numbers
> > with no dot to signify multiplication leads to confusing output, and in
> > fact the TeX function that comes with Maxima has this exact bug. One of
> the
> > small projects I want to get done in the week between classes and SD4 is
> > redoing the symbolic output to be less redundant, and this fits in with
> > that.
>
> On a similar note, there is another issue that would improve the output
> significantly. I have expressions which are a product of about 5 things
> and
> they are output with excessive parentheses, for example:
> (((1+a)(1+b))(1+c))(1+d)
> The parenthesis check in the code just adds parentheses if the left
> subexpression contains a minus or plus. Of course, it should check if
> there
> is a minus or plus that isn't already bracketed or something like that.
> Would you like a trac bug for that?
That would be great. I've been working on rewriting that entire method with
much better thought out logic, so ideally it will get fixed.
In any case, the latex view functionality is IMO a huge feature of sage that
> I've wanted in so many other systems. It's an absolutely essential
> alternative to the screenful of symbols which are output from
> Maple/Mathematica and others when stuff gets big (of course, maybe I'm
> missing some features in the big M's).
I agree 100%. Although I think Mathematica, at least, draws something sort
of nice in its notebook. My guess is that Maple does the same. Still, we
have the opportunity to beat them here, with very little work on our part.
--
> Joel
>
> >
>
--
Bobby Moretti
[EMAIL PROTECTED]
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