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Messages - Adriweb

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511
su


(or sudo <command>)

512
On the CX, at least, that's directly possible. With no battery plugged in, you can still start and use it while it's connected to a USB Power source.

513
Math and Science / Re: Gamma!
« on: May 17, 2013, 08:46:06 pm »
Interesting read :)

I've worked with those functions for school for like 2 years now :P

I couldn't resist looking things up on Wolfram Alpha with what you said.

It turns out that :


( )

I wanted to graph the difference between the 2 things :
It's commonly known that gamma(x+1) == x!, so graphing what you say is (to see the difference) :

A bit weird (against your idea at least) since it doesn't look like it's converging as x gets bigger ?....


But then I saw that W|A actually give what you'd be looking for : the difference between the 2 expressions :


But that's not really usable then ^^
(Well, Mathematice 9 doesn't get further, or at least not directly :
)

514
The XML structure fo the Notes page is extremeley [overly] complicated. I doubt any ndless developer would want to actually fully r-e the 3.2 one and backport it on 3.1, sorry...

(Although, with Lua, even on 3.1, you could do some text formatting, already...)

515
News / Re: First real HP-Prime prototype HD photo
« on: May 17, 2013, 10:19:59 am »
We notice (thank you Adriweb) some important differences as the model name is different: instead of "HP-Prime Graphing Calculator", here we get a "HP Advanced Graphing Calculator " meaning it's probably a prototype.
Well, I probably wasn't the only one noticing the name difference but indeed we all missed it at first, since we were focusing on the rest :P
While it "probably" means it's a prototype, maybe it is actually the final SW/HW in that demo unit (we're not so far away from release), and just the name was different.

Personally, I prefer the silver pad instead of black one... I guess we'll only know when HP sends demo units to the press or when it comes to pre-ordering on some stores that take photos...

516
TI-BASIC / Re: sammyMaX's Nspire PalPrime
« on: May 15, 2013, 06:14:26 am »
It takes around 2 seconds to calculate the 100th palprime, 6 seconds for the 250th palprime, 16 seconds for the 500th palprime, and 39 seconds for the 1000th palprime. The times were taken from an emulated Nspire CX running OS 3.1.0, at 100% emulation (normal speed).

Having finished to time the Nspire entries, I can say your emulated Nspire wasn't at 100% (or, well, the emulation speed display was clearly inaccurate).
On a real CX 3.1, n=1000 took 2mins 33secs 5tenth.
But you really don't have to worry, each program was tested on the same calc (hardware and software) following a strict protocol ensuring performance fairness for everyone :)

517
Lua / Re: Add function to the gc class
« on: May 13, 2013, 03:18:16 am »
Arg, well, yeah, obviously :D
Thanks ^^

518
Lua / Re: Add function to the gc class
« on: May 10, 2013, 04:53:38 pm »
necroposting for the good cause

http://inspired-lua.org/index.php/2013/05/how-to-add-your-own-functions-to-gc/ :)

This code, by Jim Bauwens, is simply very neat and clean :)

519
You still have semething like 58 hours :P (at the time of this post)

520
Miscellaneous / Re: Achievement ! Get featured by TI :D
« on: May 07, 2013, 03:53:20 pm »
Thanks ^^

@AlexisViera : It is a GUI Toolkit Demo for Nspire Lua scripting :)

521
Miscellaneous / Achievement ! Get featured by TI :D
« on: May 07, 2013, 03:21:53 pm »
I was facebooking around when suddenly ...




It's this program, by Jim Bauwens and me : http://tiplanet.org/forum/archives_voir.php?id=9275


Get featured by TI : achievement get  :D


FYI, their post is about the upcoming webinar (in a few hours), about Nspire Lua scripting. More info :  http://link.ti-enews.com/YesConnect/HtmlMessagePreview?a=dCy-k-skG0Ur-4GjEDuWdI

522
Other Calculators / Re: TI NSpire CX CAS VS HP Prime CAS
« on: May 05, 2013, 12:53:18 pm »
Not sure what you mean by shapes ?

Like hand-drawn lines/fills ?
If that's what you're talking about, then yes, it's way faster and lighter in memory than using sprites. (TI's lua image is very bad....).
But some games do use images and are still efficient.

523
Miscellaneous / Re: Girl and Calculator go to prom
« on: May 05, 2013, 06:49:28 am »
But what if she is, actually ? ;)

524
Other Calculators / Re: TI NSpire CX CAS VS HP Prime CAS
« on: May 05, 2013, 06:48:10 am »
Quote
(it was quite bad at first with no input, indeed, but it's gotten better little by little)
It still cannot draw pixels to the screen or get direct input from the keyboard (getKey()), which pretty much any programmable calculator can do, even the TI-81 from more than 20 years ago and various even older models from other manufacturers. The older HP-41C, which both you and me know well enough, doesn't have a graphical screen, but it has getKey(), the keyboard is remappable, and programming it at a lower level than BASIC is possible.
As you're aware, getKey(), drawing pixels to the screen or outputting data to the RS232 port (which TI shortly gave as an implementation side effect of a Lua function, but quickly took away...) would be useful even for teaching.

I couldn't agree more, obviously, there still are some incomprehensible lacks.
Btw, we've asked for print() back, so, we'll see...

525
Other Calculators / Re: TI NSpire CX CAS VS HP Prime CAS
« on: May 04, 2013, 06:45:27 pm »
Just to be clear, the Nspire development is not at all like the z80 or 68k. The Nspires, because of TI locking them down from native programming, are completely oriented towards math/science programmability (it was quite bad at first with no input, indeed, but it's gotten better little by little). I believe the number of educational activities (documents, "programs") available for the Nspire is extremely far beyond any other platform, and it has every reason to be so, the platform being well suited for this use.
By restricting the possibilities of built-in on-calc programming to TI-Basic, TI knowingly made it clear that it was made for and designed for math&science things. And for that, this platform is probably the best among any other calc.
For gaming/hacking/etc. well, it has to be through unofficial things, so obviously it's less easy than having an official way with an SDK, etc. That simply explains the difference of popularity for native programming projects.

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