mailing-list for TeXmacs Users

[Karl Hegbloom <address@hidden>]

On Fri, 2005-11-11 at 16:53 +0100, Alvaro Tejero Cantero wrote:
> On Fri, 2005-11-11 at 09:20 -0600, Juan Pablo Romero wrote:
> > I've been playing with sessions lately, specially R and XYpic.
> > 
> > I find them extremely useful, and I'd like to make a couple of 
> > suggestions:
> > 
> > * What about a "copy input from above" / "copy output from above"
> > functions? (you know, like mathematica's <Ctrl+L>, <Shift+Ctrl+L>).
> 
> This would be fantastic for tables -> to use in eqnarrays in which you
> succesively process the output in the right hand side.

I wonder how hard it would be to implement Scheme code that can perform
algebraic transformations of expressions in the process?  It could use
pattern matching and transformation rules, perhaps.  It should not be
too automatic...  Things like distribute, factor n, re-arrange terms,
etc. that don't necessarily require CAS to perform.  If it could
remember the order you've arranged terms, and after CAS processing put
them back in that order...  What else?

-- 
Karl Hegbloom <address@hidden>