Is HP Prime going out of production?

[profrd]

(05-29-2017 07:14 PM)Anders Wrote:  

(05-29-2017 06:58 PM)parisse Wrote:  Anders, I think you are a little confused : KhiCAS is the TI port of Giac/Xcas tha I made some time ago, it is a ndless application, not the built-in TI CAS (you can run it perfectly legally on a non-CAS nspire). All commands of Giac are enabled on KhiCAS, therefore you have more commands than on the Prime (where some commands are disabled), and you also have support for multi-precision floats and interval arithmetic (GMP+MPFR+MPFI). But there is only poor integration with the TI system (you can only work inside your khicas document) and there is no support, I mean if there is a bug (e.g. a bug that requires rebooting the calc), I can never warrant I will be able to fix it (and it takes much more time to fix a bug on this platform because I do not have efficient debugging tools). It should be considered as a geek application or a useful addition on non-CAS nspire.

Yes I ment the standard built in nspire CAS and should not have referenced the KhiCAS. I kind of ment that KhiCAS programming is top of the out of the box experience so KhiCAS would not count (did not express that logic well). I think we all rather have everything inside the out-of-the-box CAS rather than having it as "KhiCAS like addon". Fixed my post to make this clearer.

So given that, is there a way we can PLEASE get all of Giac/Xcas into HP Primes CAS then

I think the Central question arround HP Prime x TI Nspire Advanced Symbolic Math Add-ons like KhiCAS [ https://tiplanet.org/forum/viewtopic.php...0&&lang=en ] ( based on Bernard Parisse Giac [ https://www-fourier.ujf-grenoble.fr/~parisse/giac.html ] ) is not "if" ( or when ) KhiCAS would be ported from Nspire to Prime ( since it would be a bit nonsense replicating Most of Giac code already Native to HP Prime ) but simply "when" ( or if ) someday separate Add-on implementations of multi-precision floats and interval arithmetic packages like (GMP+MPFR+MPFI) [ https://gmplib.org/ ], [ http://www.mpfr.org/ ], [ https://perso.ens-lyon.fr/nathalie.revol/software.html ] where finally Ported to HP Prime !

That "milestone" ( when / if implemented or ported ) would certainly give Prime a very substantial "advantage" over Nspire mainly due to the better Hardware specs of HP Prime.

In a personal response from Bernard Parisse [ http://www.hpmuseum.org/forum/archive/in...-4099.html ] ( which I Thank once more for his Very Kind attention, and would like to be "corrected" if I am wrong at the actual post ) it has been explained that due to the Licensing schemes of GMP, MPFR and MPFI they could be not officially integrated to HP Prime Kernel without disclosing the Hole HP Kernel source code ... establishing thus a Copyright limitation conflict between Native HP owned code and OpenSource GMP, MPFR code.

The question to be really asked for would be when an OpenSource separate Add-on Port of multi-precision floats and interval arithmetic like the ones provided by GMP, MPFR and MPFI would finally be available to HP Prime ! providing a substantial Quantum Leap to Prime like the one KhiCAS provided to Nspire a few years ago.

Another interesting an Powerful feature that could be partially ported or natively implemented on HP Prime ( or TI Nspire ) is Closed Form Floating Point Constant Identification or Recognition, like the [identify] command available on Maple for example, which allows for closed form expressions involving transcendental functions to be aproximately "matched" to some Numerical floating point value.

For a "Definitive" online experience on the subject one may give a try to the [ Inverse Symbolic Calculator ] available at [ https://isc.carma.newcastle.edu.au/ ]

That has been actively used for example in determining symbolic ( aproximate ) expressions of Definite integral values numerically evaluated to enough precision, and which simply could not be expressed in analytical form by conventional Symbolic evaluation procedures.

This and other correlated questions and suggestions pertaining the Porting of ( Top Notch ) "21 Century" Experimental Mathematics [ https://en.wikipedia.org/wiki/Experimental_mathematics ] resources to actual calculator "Marvels" like HP Prime or TI Nspire are extensively adressed ( and "Suggested" ) at

[ http://www.tricider.com/brainstorming/2eKfifdjarx ]

Where also some other Giac features still "missing" on HP Prime are adressed like for example [ reverse_rsolve ] fully described at [ http://www-fourier.ujf-grenoble.fr/~pari...en454.html ] and unfortunately not available on Prime.

A Full List of "missing" Giac features Not implemented on HP Prime would be of Great value to interested users seeking for alternative implementations.

Complementing such feature "gap" I think its also of interest to note the existence of the TI-89 [ MathTools ] package with more than 300 TI-89 Advanced Math Routines with Source Code available at [ http://www.ticalc.org/archives/files/fil...27135.html ] some of which could be someday Ported to HP Prime !

Like for example explicit Closed Form solutions to 3rd and 4th degree polynomials and a Complete set of Advanced Special Funtions, like the ones from the "NIST Handbook of Mathematical Functions" or the "Atlas of Functions" and the "Atlas for Computing Mathematical Functions" ( where FORTRAN or C Source Codes are provided for the computation of each one ).

In such direction I also suggest the interested reader the "Experimental Mathematics" literature [ http://www.experimentalmath.info/books/ ] from ( the late ) Prof. Jonathan Borwein in close partnership with Prof. David Bailey among others.

Yours Sincerely with my Best Wishes and Regards to all,

hoping to have provided Valuable "pointers" to some interesting and still "missing" features and new Directions of future Improvement to HP Prime and TI Nspire,

Prof. Ricardo Duarte

PS: For a more Detailed description of the still missing [LongFloat] routines on HP Prime in special of the [evalf] function and [Digits] variable I suggest a brief look at [ https://h30434.www3.hp.com/t5/Calculator...-p/5188730 ] and [ http://www.tricider.com/brainstorming/2eKfifdjarx ]