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
    Name or NavList Code:
    Email:
       
    Reply
    Re: Learn to Love Logarithms
    From: Frank Reed
    Date: 2016 May 15, 18:43 -0700

    John Howard, you wrote:
    "Still you were dealing with a decimal point and had to remember to drop the the 20s and 30s etc. Why do you think the method of multiplying by -100,000 was not used instead?"

    The step of "rejecting the tens" is trivial once learned. There are other ways to do it, yes, but there's not much difference. And if you look at those paper calculations, you may find that they did that in their heads. That's how easy it was.

    Frank Reed

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

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

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

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

    Email Settings

    NavList ID 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