Android Products
This is completely free and legal. Download the app “Andie Graph” on your market for the phone
Go to this link on the phone to download the ROM.
There will be ads promoting other products so click on the bottom link that says DOWNLOAD.
Once this has finished downloading, Run “Andie Graph”
Go to settings by pushing the little icon on the phone itself that looks like a garage door or a tool box.
Go down to ROM and select the ROM you downloaded. If the app doesn’t find the ROM, then you can search for it from the app in the phone.
Apple Products
There is an app that is a type of TI-83. It is called RK-83 on the app store for apple products such as the iPhone and iPod touch. This is a $0.99 app that has the same functionality as a TI-83. It does not have the best of reviews but for $0.99, its worth a shot. There is also an app by the same creator that has better reviews but it is an 89.
Computer based emulator: Click here to use an online version of the TI-84. Once in the site, click on the bottom link for graphing calculator, then press START twice and click on the calculator icon in the toolbar at the top.