A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Frank Reed
Date: 2016 Jul 29, 16:03 -0700
David C, you wrote:
"While trying to discover what the Sadler method is I came across a message in the Bayless/Modified Ageton thread that had an untitled document attached."
Well, it's not "untitled". It's "Ageton_01.pdf", and here is the direct link to the file: http://fer3.com/arc/imgx/Ageton_01.pdf.
"The document explained the standard and Sadler methods. Glancing through the explanations I came across the expressions log esc t and log ese dec. What are esc and ese?"
It appears that a portion of that document has been a victim of what they used to call "OCR". Today it's just "text recognition". I believe that those cases where you see "log esc" and "log ese", you're looking at text which should have been rendered as log csc which, of course, would be the log cosecant of an angle (which is identical to the log of 1/sin of an angle, which is also identical to the negative of the log of the sine of an angle).
To identify the message you were reading, you wrote:
"Message was dated May 8 2016."
You need to learn how to copy the URL (web address) of a web page in your browser! This is extremely handy, and to be honest it's really "Internet 101". Here is the address, linked, to the post you were apparently referrring to: