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Ask Slashdot: Replacing a TI-84 With Software On a Linux Box?

Posted by Soulskill on from the can-we-get-a-modern-display-on-these-things dept.

yanom writes "I'm currently a high school student using my TI-84 for mathematics courses. It has all the functionality I need (except CAS), but saying that the hardware is dated is putting it nicely. Waiting 4-5 seconds for a simple function to be graphed on its 96x64 screen just makes me want to hurl it at the wall. Recently, I've begun to notice the absurdity of doing my math homework on a 70's era microchip when I have an i7 machine with Linux within arm's reach. I've begun looking for software packages that could potentially replace the graphing calculator's functionality, including Xcas and Maxima, but both lack what I consider basic calculator functionality — xcas can't create a table of values for a function, and maxima can't use degrees, only radians. So, does anyone know of a good software package to replace my graphing calculator (and maybe provide CAS to boot)?"

2 of 254 comments (clear)

  1. maxima can't do degrees? Ha. by Anonymous Coward · · Score: 4, Insightful

    Why do you want a CAS if you're not prepared to use it. For each trig function, define another which takes an argument in degrees and calls the built-in one with the argument converted to radians.

  2. If you have a smartphone . . . by dogsbreath · · Score: 5, Insightful

    . . . there are some excellent graphing calculator apps for iOS and I am sure Android has a fair selection as well. They do 2D, 3D and solve algebra.

    Also there exist a number of HP emulations but I don't know if there are any for TI.

    All of them execute at some Warp factor faster than discrete calculators but there are some issues with using a device different from what the school recommends. My experience with guiding my own spawn around the perils of high school math leads me to believe that HSs (in Canada at least) are more interested in teaching button pushing than math. Many teachers have no interest in math and are perplexed when someone has an issue with something such as a different calculator solution.

    Besides that, when using alternatives you may get differing results or even some fantastic errors depending on how well written the code is.

    [RANT ON]
    Sorry, but I gotta say this: CALCULATORS OBSTRUCT THE LEARNING OF MATH

    phew, had to get that out

    My apologies for the caps but it is a rant after all . . .

    There is a place for calculators in engineering courses and in some aspects of learning math but you can get a PhD in Math Science without ever getting near a calculator. I saw my kids get all caught up in the numbers to the detriment of understanding the process and theory. When they started doing courses later on (such as physics, biology, chemistry and sociology-er 'stats'), they had to go back and learn some of the fundamentals that had never been emphasized because of the calculator fixation.

    Bottom line: use the TI and don't waste time on alternatives. Use that time to learn the theory.

    [RANT OFF]

    Well, unless of course you are a real nerd (like the rest of us) and do both: learn the math and are obsessive about calculation tools

    Cheers