ifactor(Ans) does not work

[Arno K]

Hm, first I thought: that is a cas-command, I tried in cas-mode and your example worked, I tried in Home, chose Ifactor from the Menu, that provided: CAS.ifactor(Ans) and it worked, too, the last try was, in Home, ifactor from the catalog, it also worked. Perhaps you haven't updated to the latest version.
Arno