[Maxima] Bug in derivabbrev? in defrule?

[Martin Schönecker]

> So it has to count from cc down to 0.  Since cc is not an integer, there 
> is a problem.

I see, thank you.


> Now how to fix this?   What would you like to see?  perhaps
> 
>   aa
>     <cc>
>    bb
> 
> or an error message?
> or ??

I'm not sure.  This is what a competitor does:

In[1]:= OutputForm @ Derivative[n,0,m][f][x,y,z]
Out[1]//OutputForm=
  (n,0,m)
f       [x, y, z]



Martin