Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Curve sketching freeware
    From: Michael Arthur
    Date: 2017 May 19, 12:50 -0700

    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.


    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site