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    Re: Rigorous v Approximate methods
    From: Arthur Pearson
    Date: 2003 May 15, 00:05 -0400

    Kieran,
    
    The list recently had a series of postings by Jan Kalivoda discussing
    rigorous vs. approximate methods. You may already have seen them and are
    now after something more specific.  If you haven't seen them, they are a
    right on your topic.  After several responses to the initial article, a
    revised version was posted incorporating various minor clarifications.
    This final posting is available at
    http://www.i-DEADLINK-com/lists/navigation/0304/0048.html.  If you wish to
    read the entire thread from the beginning, start at
    http://www.i-DEADLINK-com/lists/navigation/0304/0022.html. These links are
    also available at the Nav-L section of www.LD-DEADLINK-com.
    
    I hope you will share your paper with the list, good luck with it.
    
    Regards,
    Arthur
    
    -----Original Message-----
    From: Navigation Mailing List
    [mailto:NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM] On Behalf Of Kieran Kelly
    Sent: Wednesday, May 14, 2003 10:21 PM
    To: NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM
    Subject: Re: Rigorous v Approximate methods
    
    I am attempting to write a paper on historical navigation methods using
    Lunar Distances and have come across numerous examples of sight
    reduction
    using a rigorous method as outlined in both Norie and Raper. However
    they do
    not say what is rigorous about the method and how it compares to the
    approximate methods also mentioned in both texts.
    
    I presume the texts are referring to solutions of the spherical
    triangles in
    the Lunar Distance reduction process but I am lost.
    
    Can someone direct me to material which explains the difference?
    
    Also I am trying to use graphical symbols in my paper sun as sun ll,
    moon ll
    but cannot find them in any program. Does anyone on the list have a set
    of
    symbols which I could use for incorporation in documents in a format
    compatible with a program such as photoshop.
    
    
    Regards
    
    
    
    Kieran Kelly
    kkelly---.net.au
    
    
    

       
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