I'm just getting to my new NspireCX-CAS (it's an incredible handheld) and going through the 'Getting Started with the TI-Nspire CX/TI-Nspire CX CAS Handheld' guidebook.
I've graphed the circle <Menu 3 3 3 1> (There is an error in the guidebook on page28 <3 2 3 1> is listed) and cannot remove the formula from the graph entry line. Clearing the graph using the menu <Menu 1 4> or highlighting and delete doesn't work.
Any suggestions? I'll likely have numerous questions in the near future.
Thanks in advance, Dik