CAS.part() behaviour

[BruceH]

(12-21-2018 06:52 PM)parisse Wrote:  I don't understand why you can not run a CAS program from the CAS. Nothing is simplified before a CAS program is called, but of course arguments are evaluated unless they are quoted.

You say nothing is simplified - that is not what I am seeing. Try the following:

Starting with the emulator, freshly reset via the menu and running version "Build: 2.1.14181 (2018 10 16)", I created this program:

Code:

#cas
test(a):=
BEGIN
  RETURN a;
END;
#end

Running from CAS, I get test('1+1') --> 2.

If I create this program:

Code:

test(a)
BEGIN
  RETURN a;
END;

Running from HOME I get test('1+1') --> 1+1

If CAS does not simplify, as you say, then how do I get the CAS program to return 1+1 rather than 2?