NavList:

Gary,

The Ageton Classic table that is provided at the beginning of this thread has Ageton AB log values sandwitced by natural sin cos values. This makes 4 place decimal multipling possible by addition.

Example:

(.3396)(.8042) = .2731

nat .3396      log 46908

nat .8042   + log  9463 

                   _________

                    log 56371   =  nat .2731

Greg Rudzinski

From: Gary LaPook
Date: 2015 Oct 30, 22:42 +0000

OK tell me how your do that.

gl

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From: Hewitt Schlereth <NoReply_Schlereth@fer3.com>
To: garylapook---.net 
Sent: Friday, October 30, 2015 11:02 AM
Subject: [NavList] Re: Ageton Classic SR Table PDF

Excellent, Greg. Had not thought of that. Another plus for the Ageton logarithms.

Hewitt

On Oct 30, 2015, at 9:47 AM, Greg Rudzinski <NoReply_Rudzinski@fer3.com> wrote:

Hewitt,

The Ageton Classic table also does a great job of multiplying two 4 place decimal numbers such as the multiplication step in the Hav Doniol reduction.

A double stack of AB values followed by a lookup will get the P value for the Hav Doniol reduction in half the time of a four place longhand multiplication with less chance of error.

Greg Rudzinski

From: Hewitt Schlereth
Date: 2015 Oct 27, 19:18 -0700

Greg, this is really nice. Now we have two super-compact Sight Reduction tables:

Doniol for those who can handle the multiplication of a stack of two five digit numbers.

Ageton Classic for those like me who find it easier to add a stack of two or three logarithms.

Hewitt