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Calculators RE- TI Nspire CX CAS vs Casio Classpad vs TI 89

  1. May 19, 2017 #1
    HI y'all! I was just told by my programming teacher that I need a new graphing calculator. She told me to decide between the TI 89, Casio Classpad fx-cp400 (or fx cp500) or the TI-Nspire CX C.A.S. I don't know if greyscale or color matters though in the long run. I am a programmer and need something more advanced, but still easy to use. I am also learning higher math right now (calculus, linear and abstract algebra). What would you recommend out of those three? Thanks- mcintyrelr20
    Last edited: May 19, 2017
  2. jcsd
  3. May 23, 2017 #2


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    It is hard to believe a programming instructor would recommend the Ti-Nspire as a it is a pretty closed system. The Casio system is far newer and more modern than the other two. The Ti-89 is a very capable, but lacks color and touch screen vs the Casio.
    Is learning programming or math the main objective. Some calculators are more aligned to be math tools than calculators, the Ti-Nspire being a prime example. It is a Math tool to learn math with, but an awful calculator to crunch numbers.
  4. May 25, 2017 #3
    Programming is the main objective, but i also need to know some math. Thanks for your feedback!
  5. May 25, 2017 #4
    What is a closed system? I know open source software (Such as Linux) lets you edit the source code. Would the cx cas be good or should i go with the 89?
  6. May 25, 2017 #5


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    Actually for a simple programming platform, all are fairly good. But you will be learning BASIC or a derivative of BASIC. I would use whatever the instructor plans to use. However, all of these calculators are limited in features and functions compared to any language that you can use on a PC. In fact, if you have access to a laptop, you would be better off using that, than learning any calculator programming. But that is only my opinion.
  7. May 26, 2017 #6
    Thank You! I ended up going with the Nspire cx cas. Thanks for your feedback!
  8. Jun 1, 2017 #7


    Staff: Mentor

    I don't understand why your programming instructor is saying that you need a calculator, particularly a graphing calculator. I've taught many programming classes over the years, in Basic, Fortran, Pascal, Modula-2, C, and C++. There was never a need for the students to have a calculator of any kind.
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