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    Re: Curve sketching freeware
    From: Tom Sult
    Date: 2017 May 19, 16:40 -0500
    The apple App Store has a free TI 84 app. 

    Tom Sult, MD
    Author: JUST BE WELL (goo.gl/jUbWIX)

    On May 19, 2017, at 16:18, Michael Arthur <NoReply_Arthur@fer3.com> wrote:

    One of the easier ways of doing this would be to use a graphing calculator.  If you are using any of the Texas Instruments TI-83 or TI-84 calculators when reducing your sights, you can enter the points and fit a polynomial (2nd, 3rd or 4th degree) and graph it.  It is also possible, using the trace function, to pick any point along that curve.  

    I realize this is only free-ware if you already own the calculator, but the Texas Instruments TI-36x Pro, which costs about 18$, will also do linear, quadratic and cubic regression.  No graphing function, so the trace option is out. 

    I am sure other calculators can do similar things, I am only familiar with the TI's because that is all we use in my school.

    Mike

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