Welcome, Guest.
Please login or register.
Newb with a TI-npire CX CAS
Forum Login
Login Name: Create a new account
Password:     Forgot password

BlueCrimson Ti Calculator Forum    Ti Community Forum    Ti-Nspire  ›  Newb with a TI-npire CX CAS Moderators: Administrator Group
Users Browsing Forum
No Members and 1 Guests

Newb with a TI-npire CX CAS  This thread currently has 3,947 views. Print Print Thread
1 Pages 1 Recommend Thread
nick_onelove
September 19, 2011, 1:13pm Report to Moderator Report to Moderator
Baby Member
Posts
2
Posts Per Day
0.00
Time Online
8 minutes
I'm taking an online "Elementary Algebra" class from my local community college. It's been a few years since I graduated high school and I've forgotten pretty much everything; including my T-84 Silver, which I never took full advantage of its potential anyway.

So I went out and got myself a new calculator, and for some reason I got the nicest one available; the TI-nspire CX CAS and I am utterly lost. Please excuse my ignorance, I'm about to ask some extremely stupid questions:

First of all, how you divide?!?! When I try, it gives me the answer as a reduced, improper fraction. How can I convert that to a decimal? Or is there a setting I can change to do it automatically.

Similarly, how do I add/subtract/multiply/divide fractions on it? To make the line between the numerator and the denominator is it just the รท key?

Also, I see that there is an "=" button that doesn't actually solve math problems, like the Enter button does. This leads me to believe I can enter entire equations and have the calculator solve for x. Is this true? And if so, how do I accomplish that?

Finally, will it/how do I get it to do fractional proportions? For example, what buttons would I press to solve this:

x = _ 5
9      4

I apologize for the many stupid questions, thanks in advanced for the help!
Logged Offline
Private Message Private message
fryedsoft
September 19, 2011, 9:41pm Report to Moderator Report to Moderator

Fryed Software
Posts
127
Posts Per Day
0.03
Reputation
100.00%
Reputation Score
+1 / -0
Time Online
24 days 10 hours 24 minutes
Location
Farrell, PA
well I don't have an Nspire, but some of the 89 calls may work.

For division, on the 89, I used to always add .0 to the question. this usually would give you a decimal answer without having to turn off pretty print. so 5/4+.0 would give you 1.25 instead of 5/4

fractions on the 89 you would separate using parenthesis so on the calc you would type (1/4)+(1/4) and it would return 1/2 as the answer.

On the 89, to solve equasions, you would use the solve( function, and it used to work like solve(x+5=7,x) and it would return 2. if that don't work try nsolve.

the solve would solve the fractional proportion as well.

Just keep in mind that these are all 89 calls. My guess is that they would work on the nspire but there's a lot of functions the 89 did that the nspire does differently or not at all. at least it's worth a shot.


Logged Offline
Site Site Private Message Private message Reply: 1 - 2
nick_onelove
September 20, 2011, 7:21am Report to Moderator Report to Moderator
Baby Member
Posts
2
Posts Per Day
0.00
Time Online
8 minutes
Thank you SO much! I don't have the calc with me at the moment, but that all sounds right.

I'll confirm it as soonn as I actually get my calculator, thanks again!
Logged Offline
Private Message Private message Reply: 2 - 2
1 Pages 1 Recommend Thread
Print Print Thread

BlueCrimson Ti Calculator Forum    Ti Community Forum    Ti-Nspire  ›  Newb with a TI-npire CX CAS

Thread Rating
There is currently no rating for this thread
 

Thread Tags
ti,  nspire,  help