How to save a CAS program

[parisse]

(07-30-2014 08:17 PM)Thomas_Sch Wrote:  In my opinion the internal representation as a CAS function should be translated to the user: if you call it a program, it should behave like a program.

I don't understand what you mean, a CAS program has the same internal structure a CAS user-defined function, it's a symbolic object with program as root-node.