Hello.
I recently got 2 ti nspire cx ii and they both seem to be functioning well, but whenever I leave them off for a few days they will just refuse to turn on (even though theyre fully charged)
The workaround Ive found so far is to hold the reset button for 5 secs before turning it back on
Is this normal behavior? If not, what can I do to fix this?
Hi everyone,
I have a question about programming the TI-Nspire CX II-T CAS.
I want to know if it is possible to create a program where I can simply type in a math problem, and then the calculator gives me both:
My math teacher, who has a bachelor’s degree, said this is not possible. I want to understand if he is right or if there is a way to do it.
The topics I would want the calculator to solve are:
Basically, I want to type in only the problem, and the calculator should automatically give the correct solution and explain the steps, not just give the answer.
Is this possible to program on the TI-Nspire CX II-T CAS using TI-Basic, Lua, Python, or another method?
I know the calculator already has CAS features, but I am specifically asking about generating a reliable step-by-step solution path for different school math topics.
Any advice, examples, or explanations would be appreciated.
Thanks!
BOOT Code 1.00
BASE Code 2.21
Edit: I did try to connect via USB and TI Connect CE, but it's just not showing up there nor in the serial menu
I'm doing some cleaning up around the house and found a serial to mini plug cable along with 2 link cables. These would have been purchased in the last '90s, early '00s.
I looked on eBay and they're selling for a decent amount (~$5) so I figured I'd try to get them to a good home.
Would it be best to list them all separately or together? I have no way to test them.
And I'm taking most of the stuff I have to a donation place but I don't think many people would know what these are.
Some context I'm in high school currently and around the start of my school year last year my sister ended up giving me her old TI-84 Plus and that basically start my love for TI calculators as I really enjoyed just getting to learn about all the stuff you could do with them and just the charm of it too I fell in love with as I really like tech similar to it and with some time I started to really want to get the TI-89 Titanium as it has so many more different and exciting features while still having the charm of the older TI-84 plus and during the time I was looking to buy a TI-89 Titanium I found a TI-Nspire CX II CAS (used) for a really price near where I lived and I knew how much better it was so I decided in the end to go with it and for the past little under a year I've been loving it and enjoying it but I still feel like something is missing as I feel like it just doesn't have the charm as the older TI-84 Plus that drove me to love them
And so basically what I'm getting at is would it be a bad idea to sell my TI-Nspire CX II CAS and get the TI-89 Titanium or should I keep the TI-Nspire CX II CAS and continue using it and learning about it.
Thank you so much for any of your thoughts or ideas and overall help with this!
Ps- This is also my first time really doing stuff like this so I'm really sorry for any mistakes on my part or if I come off bad in any way please let me know of anything thank you truly for your patience!
I need help coding the LinRegT-interval feature for my Statistic unit and finals. For context, my dumbass decide to save 40 bucks by buying a TI-83 Plus instead of a TI-84 statistic calculator. Because of this, there are many feature that I have to manually code into the program such as GOF test, T interval, and INV Chi. We are currently on the Regression lessons and was recently introduce the regression T-Interval procedure.
I used AI to code the exact code show in the images into the New Program button. After inputing the number in the two list, I run the program, inputted the list and was met with the err:Undefined. When I clicked on GOTO, it ended up on the *, next to the “a”. Can someone check if all the variables are defined, everything is correctly added and I am not missing anything.
If you need more information in order to help me, feel free to ask. (My grammar is buns 💔）
I html-ised the lot, and they're now available with a complete index, and all back-links in articles are clickable. Enjoy!
Came with the cable and the slide cover! Perfect working battery, too.
No complaints! (So far after ~1 year)
This year, I have created a new contest for Cemetech with some very special prizes!
The theme for this contest will be based off a dungeon crawler and entries will be submitted with "Hybrid-BASIC" programs!
If you are interested in participating, head on over to Cemetech for more details!
The contest will end June 11th, 2026 at 12:00 AM UTC and the winners will be revealed two weeks later.
You must have an account on Cemetech.net to participate in CC27.
I tried to plug it in the first time, nothing popped up. I uninstalled the app, rebooted, installed it again, rebooted, then I got that notification about the driver policy. I tried to manually uninstall the device and install it again with the driver path from the support page and nothing again. I have an exam tmrw guys please 😭😭😭
what usb is this to the right of the mini usb on top of the ti nspire cx II? ive been looking everywhere cant find anything. circled in red
Im trying to get my calculator out of test mode and its not showing up in the software. I really need help like now sighh.
My Voyage 200 Calculator is stuck on the Installation in Progress Please do not interrupt screen. I cant do anything, most of the Button shortcuts dont work. What does work is holding Apps while turning on the calculator to make it ready for an OS install. I can connect my calculator to TI Connect flawlessly while in this state, but when i want to load the newest OS onto the Calculator, the Screen sais "Cannot Back up cert memory" and TI Connect sais something in French (Le transferit courant a echoue. Une prochaine tentative peut reussir (8C010001)). I alrealy replaced the normal Batteries and the Memory-Battery with brand new ones... what is left to do?
