A real CAS (symbolic computation) ever seen on a calculator, at least much better than TI nSpire. Parisse thank you xcas designer / giac and say it is allowed to ferry ... Almost Mathematica or Maple on a few square centimeters. (I exaggerate) Unfortunately, still this side "sloppy" recent HP, a cowboy on the Linux side where excellent software quality alongside a presentation (police, charter, graphics) that will die laughing Apple aficionados. This is surprising and heartbreaking. HP premium features Arm9 400Mhz 32MB, it is light years away has a Ti 83 Recommended for high school (and its poor z80 6Mhz 30K) but still far from the power of smartphones. Graphical functions are instantly displayed in 320 * 200 color, instant zoom with fingers to the "iphone" on an interesting place of the curve (magical, enjoyable), but there is a price: autonomy (rechargeable battery that it will always look like a smartphone, but hey, we will not charge everyday. Now I address the fifties used to HP since 15 years, who dream of a new techno with HP RPN and programming USER RPL. I said, FLEE, this calculator is oriented "maths course" and emphasizes the symbolic math!. In no case has the HP Premium efficiency practice of HP48. The optional HP RPN Prime is unrecognizable. I am convinced that this is currently the most powerful calculator for math students from the second to the end of his sound engineer studies, but we must recognize that after (pro life) the CAS one has nothing to do, we want a handy calculator and effective and therefore not an HP Prime.
