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: Bowditch Table 15
    From: Bill B
    Date: 2005 Jan 24, 22:16 -0500

    Craig wrote:
    > I remember from statistics that the process of squaring a number then taking
    > the root of it is for the purpose of removing negative
    > numbers.
    An excellent point, that I either never knew or forgot.  Another method of
    determining absolute value?  Thank you.
    George wrote:
    > To me, it seems a bit suspicious that that text refers to "The constants
    > .0002419 and 0.7349", although a third, and different, constant of .002419
    > also appears to be used in the expression. Is that a misprint, I wonder?
    No need to wonder.  If I put the 0.002419 figure out there it was indeed a
    typo.  The correct constant, according to Bowditch, is 0.0002419.  Plug
    variations of 0.002419 into Excel and it does not match the tabular values.
    So big-boy rules.  If you did it, admit it.  If you broke it, repair it.  If
    you lost it, replace it. If it was not one of my posts, I wonder which text?
    Any help there?

    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