Hi,

On Wed, 10 Jun 2009 01:12:57 -0700 (PDT)
Marky Marc <marcahr...@gmail.com> wrote:

<snip>
> > > Now, on other silly topics:
> > > I've switched from using sage 3.2 on my machine to using the
> > > sagenb.org server. It seems the latter has poorer typesetting
> > > abilities than v3.2, eg often (but not always) renders sqrt(.) as
> > > "sqrt (...)" rather than using the usual symbol. Why? Is it
> > > something I set?

As Jason mentioned, this is caused by the switch in the default
symbolics backend. We didn't have enough time to test things
thoroughly. We're tracking the typesetting problem here:

http://trac.sagemath.org/sage_trac/ticket/6211

I just added your example to the ticket.

> > > Finally, regarding this code:
> > > --------------------
> > > var('X kappa')
> > > X=sqrt(kappa)
> > > F=exp(X)
> > > show(F/F)
> > > -------------
> > > On v3.2 on my machine the answer is shown as "1", but the
> > > sagenb.org server tells me it's
> > > e^{2*sqrt(kappa)}  as though it were showing F*F. What's going on
> > > here?
> >
> > In the past few weeks, we've switched to a new system for doing
> > symbolics which is much faster and promises a great future.  There
> > are some patches still going in to better handle the typesetting;
> > these issues may be associated with the update.
> >
> 
> Regarding the code I posted: am I doing something stupid to not get
> "1" as the answer. I really like the idea of the notebook server, but
> at the moment it seems that sagenb.org is not typesetting well (which
> you addressed) and is returning faulty answers. Particularly for the
> latter reason it's not terribly usable. OK, I'm probably jumping to
> conclusions in that last sentence... I must be doing something silly
> in my code. Perhamps there's some semantic nuance I'm unaware of?

This is a serious bug in the new code we added for simplifying
expressions involving exp's. I made a new ticket for this,

http://trac.sagemath.org/sage_trac/ticket/6256

It's a blocker for 4.0.2. I hope I can get to it before the release
this weekend.


Many thanks for reporting these.

Cheers,
Burcin

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