$15 is an awesome price. If nothing else, it'd be fun to fool around with.

Pretty much what I thought. Just had to ask about the tooling capability before I bought it.

Also, does anyone have the specs of it? Is it comparable to an 83+?

At my local Target, I saw a few Casio FX-9750GIIwe calculators for $15. I've never owned a Casio calculator before, and don't know if this is worth buying. I've heard that you can somehow upgrade it to a 9860, whatever that means. Are there programs for the 9750/9860, and could you link me to a few sites for them?

This looks really cool!

My CX CAS only goes to 210...

In ninth grade my friends and I got so mad about this. We would argue for hours about this, no joke. I was always in the camp that said it was equal, but whatever.

As said above, in summation notation it could be expressed as the summation of 9/(10^x) as x goes from 1 to infinity, which of course would be 1.

A lua RPG sounds great! I really want to get around to learning lua, too.

So I was browsing ti-calc yesterday, and I noticed that there was no Lights Out game for Nspire. So then... this happened.

How to play:
Try to get all the 1s to become 0s.
Use start(x,y) to create a random x by y board.
Use toggle(x,y) or t(x,y) to switch the state of a given square and those adjacent to it.

Current features:
•The game is 100% playable.
•There is a turn counter.
•Custom sized boards.
•Random level generation.
•Win detection.

Change log:
1.0.1
•Bugfix, such as fixing 1X2 boards (idk why you'd do that)
•Increased the amount of shuffling at the beginning of the game.
•Fixed my bad English.

1.0
•Initial release.

I'm open to new suggestions for features if anyone has some.
Anyways, I hope you all enjoy!