A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Jeremy Clark
Date: 2019 Jun 9, 14:56 -0700
Great, from the 2003 messages, Bruce says that log-dec tables were negative log cosine, which matches exactly.
angle=12deg32.7min, log(cos(angle))=log(0.976125714)=-0.010494246, table=0.01049
angle=29deg18.6min, log(cos(angle))=log(0.871983845)=-0.05949156, table=0.05949