<p>Hey,</p>
<p>Can someone, preferably someone who hasn't added/removed much from their calculator, run a backup and send me the file?</p>
<p>Or, is there some way to just reset everything to the way it was when it came out of the box?</p>
<p>Thanks.</p>
<p>go to <a href="http://education.ti.com/us/product/tech/89ti/included/included.html%5B/url%5D">http://education.ti.com/us/product/tech/89ti/included/included.html</a> and download everything that it says the ti-89 came with (complete list of included apps).</p>
<p>you have to enter your product code to prove that you have one...
There are some that just take up space that you don't need, like ee or me pro (unless you're an engineer)</p>
<p>Thanks!</p>
<p>Also, do you know what the use is for the simultaneous equation solver?</p>
<p>Because I know you can solve systems of equations by just using solve() and using the "and" statement before equations... beacuse this program is the only one which sounds useful (besides Stat editor and notefolio) haha</p>
<p>Thanks for the link though.... just what i needed</p>
<p>the straight line key that looks something like l next to the 7 key means "while." For example, you could say solve(4x^2-52x+67=0 l x<0) or something like that. I just made that up off the top of my head, so I'm not sure if it works.</p>