Hi all,

I was trying to add symbolic functions into another one. sage does
seem to handle it. Is there any workaround ? See :

----------------------------------------------------------------------
| Sage Version 4.0.1, Release Date: 2009-06-06                       |
| Type notebook() for the GUI, and license() for information.        |
----------------------------------------------------------------------
sage: f=function("f")
sage: g=function("g")
sage: f+g
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call
last)

/home/fresseng/.sage/temp/nix.sciences.univ_metz.fr/8882/
_home_fresseng__sage_init_sage_0.py in <module>()

TypeError: unsupported operand type(s) for +:
'sage.symbolic.function.SFunction' and
'sage.symbolic.function.SFunction'

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