CONCISE, Tokyo / Japan ( bought new from CONCISE in 2008/9 ) **************************************************************** S C A L E S of the CIRCULAR SLIDE RULE » CONCISE Model 300 « ================================================================ Front Side [ inverse / RED ] Back Side ================================================================ K X3 LL3 exp(X) A X2 LL2 exp(0.1X) D X outer circles D X ---------------------------------------------------------------- C X inner circles C X [CI] [1/X] S sin(0.1X); [cos(0.1X)] B X T1 tan(0.1X); [cot(0.1X)] L lgX T2 tan(X); [cot(X)] ST sin(0.01X); [tan(0.01X)] R E M A R K S : ( 1° = 60' ; 1' = 60" ) ================================================================ The TRIGONOMETRIC SCALES are divided in MINUTES(') & SECONDS(") This circular is very similiar to the » FULLERTON Model 1458 « Historical Remarks ... impressum: **************************************************************** © C.HAMANN http://public.BHT-Berlin.de/hamann 02/04/09 |