<p>hey, my school gave the Ap Calc class TI-89 Titaniums. i prefer my 83+ but i think eventualy we r going to have to be using this... i have never used it b4 and its confusing. my teacher only explained to us (somewhat) how to graph so far</p>
<p>some lame questions that probably anyone could figure out, but i dont want to accidentally mess up any settings/etc:</p>
<p>1- can you find the derivative of a function/how?
2- i typed 17 + (17/60), and it gave me a fraction as an answer (1037/60)... anyone know how i can set the answers to always be in decimal</p>
<p>i hope this doesnt make me sound really stupid lol
anyway those are the two i must ask... i have a thousand more questions lol but i dont wat to bother u</p>
<p>1- F3, either 1- differentiate or A- nDeriv
2- Either you can go to mode and scroll to answers in approximate (decimal), exact (fraction), or auto. Auto is the best. Whenever you want a decimal answer, like 17/3, just type in 17./3 . Having a decimal in any of the numbers while in auto will give you a decimal answer.</p>
<p>thanks!
but what is the format i have to use, if i use the functions for derivatve</p>
<p>I hope this explanation is what you're looking for.</p>
<p>There are three ways to get a derivative, the two that smartboybynd mentioned, and pressing 2nd 8. When using 2nd 8 and F3 1, type in your function, say x + 3 for example. So you would have d(x+3 . After, you muct type in ,x so the calculator knows that you want the derivative with respect to x. So you would then have d(x+3,x . If you want to take the second derivative, or the third and so on, you would type d(x+3,x,2) and press enter. This is also a way of finding an integral (you would use negative signs in front of the integers, so you would have d(x+3,x,-1) to get the integral.) Now, this is on a regular 89, but I'm pretty sure it's the same on a titanium (except I don't think it will let you do integrals like that, but try it ans see).</p>
<p>And I wouldn't use nDeriv, unless my teacher made me.</p>