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Website last updated 03 August, 2010

S2 Scale

A decimal trig scale with angles for sines 0.6º-6º running in one direction, and angles for cosines 89.4º - 84º running the other way. You shouldn't use this scale for tans and cotans.

S2, ST, and T2 look the same, but there are important differences. Read tutorial on Trigonometry.

S2_D, ST_D, and T2_D are the DMS equivalent scales.