Author Topic: Fractions in TI Nspire CX?  (Read 4748 times)

0 Members and 1 Guest are viewing this topic.

Offline gnmmarechal

  • LV1 Newcomer (Next: 20)
  • *
  • Posts: 14
  • Rating: +0/-0
    • View Profile
Fractions in TI Nspire CX?
« on: October 15, 2014, 05:34:50 pm »
So, I own a TI-Nspire CX (Rev.D, OS 3.1 Ndless) and a CASIO fx-9750GII (jailbroken it thinks it is an fx-9860).


It pisses me off that, when I do sin(pi/3) on my high-end TI, it gives me 0.866..., while my low end CASIO gives me the result in a fraction ((square root of 3)/2). Can I do it on my CX?

Offline Adriweb

  • Editor
  • LV10 31337 u53r (Next: 2000)
  • **********
  • Posts: 1708
  • Rating: +229/-17
    • View Profile
    • TI-Planet.org
Re: Fractions in TI Nspire CX?
« Reply #1 on: October 15, 2014, 06:49:07 pm »
Sadly enough, exact calculations aren't a feature of the non-CAS Nspires.

- With nLaunchy, it's possible to install the CAS OS. However this is forbidden in case you're still in school and if they want non-CAS calcs.

- Basic programs like mExact can get exact values of some forms.

- Lua Programs like SuperSpire can do that kind of stuff in a nice way :

However those require 3.2+. You can upgrade to 3.6 (not 3.9) to still keep Ndless compatibility, though.

« Last Edit: October 15, 2014, 06:57:13 pm by Adriweb »
My calculator programs
TI-Planet.org co-admin.
TI-Nspire Lua programming : Tutorials  |  API Documentation

Offline gnmmarechal

  • LV1 Newcomer (Next: 20)
  • *
  • Posts: 14
  • Rating: +0/-0
    • View Profile
Re: Fractions in TI Nspire CX?
« Reply #2 on: October 15, 2014, 07:22:41 pm »
damn. I like my calc having permanent Ndless, and I use apps not compatible with 3.6 ndles... but ty

Offline Adriweb

  • Editor
  • LV10 31337 u53r (Next: 2000)
  • **********
  • Posts: 1708
  • Rating: +229/-17
    • View Profile
    • TI-Planet.org
Re: Fractions in TI Nspire CX?
« Reply #3 on: October 15, 2014, 07:25:08 pm »
You can have a reboot-proof ("permanent" as you call it ?) Ndless 3.6 thanks to nLaunchy :  https://tiplanet.org/forum/viewtopic.php?t=14090&lang=en
My calculator programs
TI-Planet.org co-admin.
TI-Nspire Lua programming : Tutorials  |  API Documentation