Welcome to the NavList Message Boards.

NavList:

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

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: Averaging
    From: Chuck Taylor
    Date: 2004 Oct 23, 10:56 -0700

    --- Jim Thompson  wrote:
    
    > 4. Average time by adding up the minutes and seconds
    > and dividing by the
    > number of sights, then adding that average to the
    > whole hour.
    > 5. Average altitude by adding up the minutes and
    > seconds and dividing by the
    > number of sights, then adding that average to the
    > whole degrees.
    
    When I teach this, I find that students have less
    trouble if they first convert all altitudes to minutes
    of arc, and all times to seconds of time, and then do
    the averaging. Then when they are done, convert back.
    
    A programmable calculator makes it easier.
    
    Chuck Taylor
     47d 55' N
    122d 11' W
    
    
    __________________________________________________
    Do You Yahoo!?
    Tired of spam?  Yahoo! Mail has the best spam protection around
    http://mail.yahoo.com
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    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:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    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