KhiCAS on TI-Nspire CX CAS. When on Hp-prime?

[Steve Simpkin]

Giac/Xcas (aka KhiCAS) is the native CAS engine of the HP Prime calculators, and also of the Android, iOS and Windows/Mac applications emulating the HP Prime. Press the CAS key and enter the same commands as in Xcas, except for a few ones.

Also don't forget to mention all of the other platforms Xcas/KhiCAS is available for.
https://www-fourier.ujf-grenoble.fr/~parisse/install_en

Bernard (and others) have been busy