Thanks, that sort of makes things a bit clearer. So most of the magic
is probably happening in the g_hold2_wrapper command right? I wonder
where it get's defined, I couldn't find it anywhere.
search_def("g_hold2_wrapper") doesn't return anything so it's not in
sage self. I also used grep to maybe locate it in the pynac spkg but
it's not there either (I wasn't sure if search_def also looked in the
spkg files), and it's also not to be found in the GiNaC reference.
Maarten Derickx
On Nov 2, 8:26 pm, Mike Hansen <mhan...@gmail.com> wrote:
> On Tue, Nov 2, 2010 at 12:15 PM, koffie <m.derickx.stud...@gmail.com> wrote:
> > return new_Expression_from_GEx(self._parent,
> > g_hold2_wrapper(g_power_construct, self._gobj, g_ex1_2, hold))
>
> > Can someone help with this?
>
> It returns a new Expression (sage.symbolic.expression.Expression)
> object that corresponds to a GiNaC/Pynac object (second argument) with
> a given parent (first argument). It's just a constructor for
> Expression like Expression.__init__, except that it takes a pointer to
> a C++ object.
>
> --Mike
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