Sunday, September 4, 2016

Ex-Meridian by Slide Rule




The ex-meridian calculation can be performed faster by slide rule than by pocket trig calculator with equal precision for celestial navigation purposes. 5 moves of the cursor and 6 moves of the slide in less than 2 minutes of time.

http://gregrudzinski.blogspot.com/2011/01/ex-meridian-by-formula.html

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