Simple & it works FYI, you don't need to have a Ti calculator to get a operating system rom. Just go to the Ti website, navigate to the downloads section of the calculator you want and download the latest version of the operating system. Put that file somewhere on your device and add the rom. That's it.
Excellent All Around Got this going in no time at all thanks to TI having a free download of their 89 rom. Played with it for a while and it runs beautifully! Only problem I've seen is a lot of flashing on the screen playing assembly games, (my primary use for my ti-89 in calculus class was games... (: ) Any idea what causes that? I'd love to play calcrogue again... but it's giving me a headache, lol!
Bare minimum emulator This app has so much potential, but I feel like it falls flat. Suggestions: we all know what it looks like, can we have an option for a button grid, rather than buttons with dead space around them? Also, make the text on the buttons (in grid form) change with the pressed function keys. Make the screen area slightly smaller for more room for buttons. That would make it perfect in my opinion.
Wow!! I can't believe I got this to work! For those who rate one star: go back to using a landline! You have no business with such an advanced device! **But with latest update the buttons aren't as responsive as they used to be but I do like the improvements especially since I upgraded to an HTC One! *2014 update: Now the keys are very responsive, I don't know how since there was no update but I'm love this app! My favorite one!
Incredibly Simple I have a TI-89 Titanium which i use all of the time, but generally when i need it in any actual applications, i never have it in my bag and am forced to resort to my phone calculator. Standard Calculators just never cut it for me. Yet with this app, while i still love physically owning a TI-89, guarantee's i'll never be without it even if the actual device isn't with me. Excellent App! This is truly using the capabilities of a smart phone!
Very good implementation If only Texas Instruments did provide a way to purchase a copy of the ROM legally, this might be even better than the real hardware. Obviously one gets better haptic feedback with real buttons but otherwise emulated hardware is better (better screen viewing angles, possibly better performance than with real hardware).
Sync with the paid version.
Open the source code to: https://bitbucket.org/dhashoandroid/graph89-free