I did own a CP 300 some years ago and I found it to be a bit wonky, per se.
I like the fact that the CP400 has color and can screen rotate and is more streamlined key wise.....finally.
So, There is the HP Prime and this essentially that I'm looking at.
I don't use RPN and I do want 3d graphing.
2 issues with the CP 400 however:
1. Memory.............People complain that this is a big issue.................How big of an issue is it? Can a person not download a Casio file to their PC if need be?
1 person on the official Casio site mentioned that the TI Nspire's memory was a lot while this 5.5 MB was a joke essentially.
Is this calculator slow with the newest software?
2. Batteries versus a Lithium battery...........People complain about this. What's your view?
Edited by Stefos1, 28 October 2016 - 11:16 PM.