multi-argument call for symbolic expressions

[robertwb]

sage: x,y = var('x y')
sage: f(3)
y + 3
sage: f(3)(4)
7
sage: f(3,4)
---------------------------------------------------------------------------
<type 'exceptions.TypeError'>             Traceback (most recent call last)

/Users/robert/sage/sage-2.5/devel/sage-working/<ipython console> in <module>()

<type 'exceptions.TypeError'>: __call__() takes at most 2 arguments (3 given)
sage: 

Component: calculus

Issue created by migration from https://trac.sagemath.org/ticket/645

[mwhansen]

comment:2

Attachment: 645.patch.gz

This should be applied after #1345.

[sagetrac-cwitty]

comment:3

Looks good to me, and doctests still pass in sage/calculus/*.

[sagetrac-mabshoff]

comment:4

Merged in 2.8.15.alpha0.