Hi Nicolas,
On Fri, 12 Jun 2009 02:09:08 -0700 (PDT)
Nicolas <[email protected]> wrote:
> Just one quick question about patches, I have just changed the
> expression.pyx file and ran another make (which took not so much
> time). But it does not seem to work. Is this simple way of applying
> patch enough or do I have to go through the mercurial system ?
You need to do
./sage -br
>From your other message:
> I will try out your patch. Why do you say that does not solve my
> problem ?
You'll see that whenever you perform arithmetic on the new objects,
you'll end up with Expression's again.
< assuming the class esub was defined as in my previous message >
sage: var('x,y,z')
(x, y, z)
sage: t = x * y^z
sage: u = esub(SR, t)
sage: u
y^z*x
sage: type(u)
<class '__main__.esub'>
sage: type(u*u)
<type 'sage.symbolic.expression.Expression'>
Let's see how far you get with the patch. I'll try to see if there is
a simple fix to make Expression behave well w.r.t. object oriented
design.
Cheers,
Burcin
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