[Request] for renaming variables

[Joe Horn]

(05-29-2014 09:28 AM)Angus Wrote:  I think JoeHorn stated that in the cas all Variables are cas Variables no matter how they are typed in. So an 'X' should be symbolic just as 'x' is so that replacing the X in F1 with the cas 'X' should work? I'm getting confused again...

You can't create a variable that already exists. So you can't create a CAS variable called 'X' because 'X' already exists as a permanently-existing Home variable.