On Tue, Nov 2, 2010 at 12:15 PM, koffie <[email protected]> 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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