CAS Programming

[Hoxydre]

Hello, I try to write and test some CAS programs but everytime I test one (even an easy one as in the picture) I can't launch it and I get an orange cirlce with a "!". How can I fix it please ?
Thanks 😄

[Jan_D]

Maybe you have to update.

In exactly the same situation I have no problems.

[Joe_Horn]

Perhaps you are trying to run the program from the Program Catalog.  Try typing TEST() in CAS instead.  CAS programs can be thought of as extending the CAS function set.  The program you listed above creates TEST() as a new CAS function, and should be executed in CAS just like other CAS functions.

Disclaimer: I don't work for HP. I'm just another happy HP calculator user.