La recherche a retourné 17 résultats

par Federico Di Ceglie
jeu. janv. 04, 2018 2:40 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : solve logarithmic inequalities with hp prime and khicas
Réponses : 4
Vues : 5716

Re: solve logarithmic inequalities with hp prime and khicas

parisse a écrit :The log template of the nspire is not recognized, try log_2(3.0) then enter. Use natural logarithm or logb(x,b) instead.
With logb(x,b) Works, thank you very much
par Federico Di Ceglie
jeu. janv. 04, 2018 11:30 am
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : solve logarithmic inequalities with hp prime and khicas
Réponses : 4
Vues : 5716

Re: solve logarithmic inequalities with hp prime and khicas

parisse a écrit :Can you enter the precise commandline (algebraic syntax)?
There is no log2 function in giac.
Both with prime and Khicas i use the template "log" of the two calculators, then I enter 2 as base of the logarithm.
par Federico Di Ceglie
mar. janv. 02, 2018 12:19 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : solve logarithmic inequalities with hp prime and khicas
Réponses : 4
Vues : 5716

solve logarithmic inequalities with hp prime and khicas

Goodmorning everyone,
Parisse, do you know why when I solve log2(3+x)+log2(3-x)>=1 hp prime otput x>=-sqrt(7) and x<=sqrt(7) and with Khicas output x>=-sqrt(-e^1+36)\2 and x<=sqrt(-e^1+36)\2?
par Federico Di Ceglie
mer. nov. 29, 2017 3:12 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

The problem is with gdb whatever the interface. I'm debugging myself with emacs and gdb or even with gdb in console mode, and that failed (segfault or breakpoint not working, I don't remember). But this is a gdb problem or Khicas problem? Because if the problem is gdb you could change Program for d...
par Federico Di Ceglie
mer. nov. 29, 2017 2:57 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

Have you tried with:
Eclipse CDT
Qt creator
Visual studio
Code blocks
Kdevelop
Are good debugging environment for programs in c++.
They don't work with Khicas?
par Federico Di Ceglie
mar. nov. 28, 2017 7:11 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

https://github.com/nspire-emus/firebird ... g-with-GDB

On ti-Planet Adriweb, which is a very good programmer on ti-nspire, says that this is the better
Method to debug Khicas, but I think It's the same you are using.
par Federico Di Ceglie
lun. nov. 27, 2017 1:37 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

There are many areas where Xcas contributors would be welcomed. Some of them: * for khicas: what is missing is a good debugging environement. I need a way to run gdb with a debug enabled version of khicas running on the firebird emulator. Currently I must add print statements with the console versi...
par Federico Di Ceglie
dim. nov. 26, 2017 7:22 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

I recommend the HP unless you need multi-precision floats : with the latest beta firmware most of the Xcas commands are available and there I have the tools to fix bugs, assume works for example. In any case, is it possibile for us users to help you improve Xcas? Since I use Khicas a lot I was wond...
par Federico Di Ceglie
dim. nov. 26, 2017 2:31 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

parisse a écrit :I recommend the HP unless you need multi-precision floats : with the latest beta firmware most of the Xcas commands are available and there I have the tools to fix bugs, assume works for example.
Ok, thank you very much
par Federico Di Ceglie
dim. nov. 26, 2017 12:06 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

However, can I ask you what is the better and most powerful between
Khicas and the cas installed on the Hp prime?
Obviously for the calculation part
par Federico Di Ceglie
dim. nov. 26, 2017 11:52 am
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

parisse a écrit :The link does not work for me. I was just wondering what the license of the app is.
I don't know what is the license of this app, but i think it hasn't the
complete functions of Xcas
par Federico Di Ceglie
dim. nov. 26, 2017 11:39 am
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

Can you give me a link to the app? [url][/url] [/i][/u] https://www.microsoft.com/store/productld/9NBLGGH168QV I think this link doesn't work, but if you search on https://www.microsoft.com you will find this app under the name of "calcolatrice+" Also searching with Google you can find the app. You...
par Federico Di Ceglie
dim. nov. 26, 2017 10:11 am
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

parisse a écrit :By the way, what is the name of your application on your phone ?
The name is "calcolatrice +" and is an app for Windows phone,
It works quite well
par Federico Di Ceglie
sam. nov. 25, 2017 8:06 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

parisse a écrit :That's normal, you must enter the 2 commands in 2 separate commandlines or add a semicolumn (;) between them.
Infact now it works on my app, on Khicas output an error with the argument (bad argument).
It says me to solve assume(x>-pi && x<pi), despite having already put in the input.
par Federico Di Ceglie
sam. nov. 25, 2017 7:22 pm
Forum : KhiCAS: Xcas pour calculatrices HP, Numworks, Casio, TI Nspire
Sujet : use of Khicas and Xcas
Réponses : 23
Vues : 18270

Re: use of Khicas and Xcas

Inside Xcas, the syntax is: assume(x>-pi && x<pi) solve(sin(x)>1/3,x) Unfortunately I tried with khicas, it does not work with khicas, I don't know why... Thank you very much, i also tried now with Khicas and this syntax but output: Undef((sin(x))>1\3,x) Also on the app of Xcas that i have on my Ph...