SageMath giving NameError on predefined functions
I am following Abstract Algebra an Interactive Approach by William Paulsen but some of the functions in the first chapter itself, like ShowTerry()
, ItitTerry()
, MultTable()
etc are giving NameError
. Same is the case with most of the functions in the preliminaries chapter like ShowRationals()
, PowerMod()
I'm not really sure how to go about it. I even tried installing sage from Source Code but the problem persists. Do I have to install some separate group theory package or am I missing something here?