Anyone else notice how the relationship between the radius and circumference apparently works out to 6.27? I guess pi = 3.135 now.

Ever heard of rounding? Presumably, both the radius and the circumference are rounded. The real values might be r=3.09 and 2 pi r approximately 19.41504..., which rounds to 3.1 and 19.4, respectively.

I was really excited when I first heard about the Nspire. But now? I don't think I'm going to buy one.

-I really want a QWERTY keyboard, and I don't think I can ever get used to not having one. I can touch type on my V200, and when I'm stuck using an 89Ti or an 83+, I can't figure out how to do anything.
-Reset button. Because I program so much, people find it funny to erase my RAM in the middle of class when I take my hand off my calc for a few seconds. I keep everything backed up on my computer always, of course, but then I have to go the rest of the day without any RAM worth using. And I'm sure I'm not the only one with this problem.
-Extra keyboard. Seriously, there's no way I could ever keep track of it, and keep it in one piece, unless it were always attached to my calc.
-Dependence on things other than the keyboard. From the site, it seems like the calc is going to do everything for you, and you won't have a chance to do anything for yourself. Normally, I'm all for anything that lets me do math more quickly, but I'd much rather use programs that I've written myself than that TI has written for me. The Voyage has great features that I love and use all the time, but there are some things that I don't like, and so have written my own programs for. It seems like this is not an option on the Nspire.

Hopefully, TI's next calc will balance the new power of the Nspire with the better features of the Voyage and 89Ti.

The reset is like a reboot button. Documents will autosave constantly. Not a big deal.

Wrong, see the thread on page 1.

not wrong.. see thread on page one again :-P

Yes wrong, until proven right.

And yet people call me crazy when I say, "guilty until proven innocent."

Look, everybody, we have already been over this. If the "Reset" button was to be used, as the TI website implied, to clear your calculator for test day, it would have to erase everything so that any knowledge the teacher didn't want the student to have would be deleted. >_<

Also, I still say someone would have to just make a patch. Like the HW3 patch for the TI-89Ti. Then the Reset button wouldn't work. End of problem!

How do you know the Reset button is controlled by software and not hardware? (Well, I think most likely it would be software-controlled, but theoretically...)

I got to play with one after T3 and ask some questions there.

There is a special "testing mode" (or "press to test" mode as they called it there) and I confirmed that the reset button is only basically a reboot. What the testing mode does is it locks out access to the file system and prevents you from saving anything during the test (preventing you from using anything stored or from taking anything with you out from the test). You can even disable specific features in the testing window as well.

When you get to the end of the test its suppose to show how long the calculator has been in testing mode and what the settings where for the testing session (so the teacher knows if you escaped testing mode and reloaded back into it during the test). After the test, the teacher confirms the testing screen when you turn it in, and all the pages and problems created during the test are wiped out, and your old files are accessible again.

I remember also over hearing two teachers talking about an LED that shows when you are in testing mode so the teacher can see it from a distance, but that feature was on the non CAS model only. I didn't get to see if that was on there since I only played with the CAS model mostly.

I guess I stand corrected.

That means TI is not going to allow assembly programs to be run on this machine then; otherwise it would be just asking for a "patch". That doesn't mean it won't be hacked (just like the 85), but now TI knows there are plenty people out there that'll try, so they will have taken safeguards against it (that is, the 85 was not supposed to run assembly, but it didn't matter if users hacked it; now TI will actively try to prevent users from getting their own assembly to run).

With the new TI-Nspire, my master plan could be completed and I could be INVINCIBLE!!

Huh? What do you MEAN you don't know what I'm talking about? Oh. (mumbling) (whispering)

By the way, everybody, if you have no idea what I'm talking about, go to the web link in this post. |-)

ARM processor? Yay, learning to prgram it in assembly has more then one use now..since the gameboy DS, advance also uses it ^_^. Z80 was practically useless for applying it to anything else (Gameboy Color ~.-), and so was 68k.

Woot!

Funny link. Thanks for sharing.

GREAT link...

What is the battery life on this beast...I have heard that it wasn't good.

Happy Pi Day...=)

Happy pi day to you, too. And congrats on the good timing.

I uploaded a TI-89 TIGCC calculate-digits-of-Pi program a couple of days ago hoping that it'd be posted by Pi Day, but it hasn't been yet. I was also hoping ticalc.org would have posted a "Happy Pi Day!" news article. But since the day's not quite over yet, maybe there's still hope...

Ah man, I uploaded my calculate pi program in BASIC for the 89. :( Got uploaded though.

Funny, I don't see any new TI-89 programs on the front page (or is this something you uploaded some time ago)? My Pi program still shows up in the pending files queue, so at least that doesn't mean they rejected it--they must have just not gotten around to it yet.

It was uploaded a few days ago, I was trying to make sure it was in before pi day, but got it in a little early. Check my profile for TI-PI.

Come to think of it, I did see your program (though I didn't realize it was released so recently) but I think I skipped over it because I couldn't immediately tell from the descriptions and readme whether it actually showed an arbitrary number of digits or just the first several. Maybe I'll try it some time.

I didn't get my program in earlier because I got the idea only a few days ago. I wasn't even planning on doing a Pi program for Pi Day; that was just a coincidence. I tried a few Pi programs, wanted something much faster, and wondered why I couldn't find any ASM ones. So I found a simple C source example on a website that said the code snippets could be used freely, and got it working and made it into a TI-89 program and then uploaded it.

That algorithm was fast enough for me, I guess--4676 digits in about 20 minutes. (That's the upper limit due to an AMS limitation.) If anyone needed more digits than that, they'd be better off using a really fast computer or downloading them, anyway.

I wrote my program as a demonstration of Leibniz' Formula (pi=(4/1)-(4/3)+(4/5)-(4/7)+(4/9)...). It's very simple, but is also *very* slow, it takes a rather long time just to reach 3.1415.

My program displays 12 decimal points at all times, including inaccurate ones, as well as the 89's built in value for pi for comparison. I was thinking about doing it in C with TIGCC, but decided that even with the speed increase, it would still be impractically slow (I compiled it for my pc with gcc and it was still slow as mud).

Holy crap, brilliant timing!