« previous next »
Pages: [1]   Go Down

Author Topic: Variables in TI-84 Plus Ce  (Read 4268 times)

0 Members and 1 Guest are viewing this topic.

Offline Trazmaball

  • LV0 Newcomer (Next: 5)
  • Posts: 1
  • Rating: +0/-0
    • View Profile
Variables in TI-84 Plus Ce
« on: April 24, 2019, 11:11:23 pm »
I already know how to put variables in, but whenever I do
(4x+8)(4x-8)
It just shows me -64
Instead of showing me 16x^2 - 64
So how do I get it to show the variables in the answer?
Logged

Offline Xeda112358

  • they/them
  • Moderator
  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 4704
  • Rating: +719/-6
  • Calc-u-lator, do doo doo do do do.
    • View Profile
Re: Variables in TI-84 Plus Ce
« Reply #1 on: April 25, 2019, 08:57:20 am »
That requires a Computer Algebra System (CAS). I don't have that calc, so I am not aware of any CAS or symbolic manipulation programs for it.
Logged

Offline TIfanx1999

  • ಠ_ಠ ( ͡° ͜ʖ ͡°)
  • CoT Emeritus
  • LV13 Extreme Addict (Next: 9001)
  • *
  • Posts: 6173
  • Rating: +191/-9
    • View Profile
Re: Variables in TI-84 Plus Ce
« Reply #2 on: May 09, 2019, 09:43:13 pm »
@Trazmaball X is being treated as a variable with a value. The calculator is just evaluating the expression based on what X is currently set to on your calculator. If you type X on the homescreen it will show you what the current value is. By default, I don't think the machine simplifies expressions like that. You would need a program that is capable of doing such a thing.
Logged
Pages: [1]   Go Up
« previous next »