Existing CAS commands --> Prime discussion
09-08-2017, 03:38 PM (This post was last modified: 08-03-2018 10:35 PM by compsystems.)
Post: #21
 compsystems Senior Member Posts: 927 Joined: Dec 2013
RE: Existing CAS commands --> Prime discussion
So what solution is feasible?
improve the operating system, create another type of library?
or best a new hardware with a bigger screen, more memory, a better processor

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09-08-2017, 03:47 PM
Post: #22
 Tim Wessman Senior Member Posts: 1,945 Joined: Dec 2013
RE: Existing CAS commands --> Prime discussion
(09-08-2017 03:38 PM)compsystems Wrote:  So what solution is feasible?

We'll just need to talk to the GNU people and get them to re-license it as closed...

TW

Although I work for the HP calculator group, the views and opinions I post here are my own.
10-30-2017, 02:19 PM (This post was last modified: 10-30-2017 05:40 PM by salvomic.)
Post: #23
 salvomic Senior Member Posts: 1,364 Joined: Jan 2015
RE: Existing CAS commands --> Prime discussion
(08-02-2017 01:57 PM)Eddie W. Shore Wrote:  Would the Fresnel functions S(x) and C(x) be a problem to implement? What about the elliptical integrals?

...

after some months... I vote also for Fresnel and Elliptical integrals, hoping their inclusion inside the CAS by default

Waiting for them (please!), in the meantime, I would help proposing something, still rough, however...

Please, for Elliptical integrals, help me to developing a control detection for the program here in the Software section (my try for Fresnel is here, also help me for that one, thank you).

Salvo

∫aL√0mic (IT9CLU), HP Prime 50g 41CX 71b 42s 12C 15C - DM42 WP34s :: Prime Soft. Lib
01-21-2018, 03:49 PM (This post was last modified: 07-28-2018 07:17 PM by compsystems.)
Post: #24
 compsystems Senior Member Posts: 927 Joined: Dec 2013
RE: Existing xCAS commands --> Prime discussion
nodisp cmd, although this is not a symbolic engine command, it would fall into the category of system command.

Example:
nodisp(A:=ranm(50,50))

Benefit for the current user:

1: Quick history exploration by not placing the object in the history, especially when working with large arrays.

----

A=B is converted into the list [A,B]

equal2list(x=3) returns {x,3}

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01-21-2018, 07:46 PM
Post: #25
 harryp Junior Member Posts: 5 Joined: Jan 2018
RE: Existing CAS commands --> Prime discussion
My Dad was an engineer and one of his adages, which I think was an engineering philosophy, was that the better is the enemy of the good. We can tinker forever but the longer you tinker the more apt you are to increase complexity and problems. In other words, at some point you say 'good enough' and implement.
08-03-2018, 10:29 PM
Post: #26
 compsystems Senior Member Posts: 927 Joined: Dec 2013
RE: Existing CAS commands --> Prime discussion
Please include the autosimplify(#) xcas command to set or not the simplification

In the following code the line,

autosimplify(2); // nop=none, 1=regroup, 2=simplify

is not yet interpreted on hp-prime

When changing the flag autosimplify(#), change the output please check the following code in xcas, varying the autosimplify(#) argument

PHP Code:
#cas        test_simplify_flag():=    BEGIN                local  list0,expr0;        local x, y;        assume( x, symbol ); // purge(x);        assume( y, symbol ); // purge(y);                autosimplify(2); // nop=none, 1=regroup, 2=simplify        print;        print("Solving a system of two equations.  Solve the  following system  [ y=x², y=2x+3 ]");        list0 := [ y = x^2, y = 2*x + 3 ]; print(list0);        print(""); print("> substitute y = x² in y = 2·x + 3");        expr0 := subst(list0(2),list0(1)); print(expr0);        print(""); print("> substract 2·x + 3");        expr0 := expr0-(2*x + 3); print(expr0);        Return expr0;    END;#end

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