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: Yet another 4-place Nat-Haversine Table project?
    From: David Fleming
    Date: 2018 Dec 7, 10:43 -0800

    Tony,

    Given that hav(x) = hav(-x)   there is no need  for negative angle table.

    Further if concerned about size & given that   1 - hav(x) = hav( 180 - x) there is no need for table for x > 90.

    I would also also reconsider the suggestion of multiplying the entries with few than 4 significant digits by a power of ten.  They could be coded with background colors to tell what power of ten that region of the table represents.

    I appologize for raining on your parade, but you asked.

    DaveF

       
    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