Elements of surveying and levelling; with descriptions of the instruments and the necessary tables (1870)
Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes & Company · leaf 42
p-plement of ^i^, and OH is its cosine;hence, tJie sine of an arc is equal tothe sine of its siqji^lement; and tliecosine of an arc is equal to the cosine of its siqyple^nent.^ Furthermore, AQ is the tangent of the arc AF, and OQ isits secant: GL is the tangent, and OL the secant of the… … Table of Natural Sines. 57. A ]SrATURAL SiXE, COSIXE, TaXCtE2>T, or COTA^GEXT. is the sine, cosine, tangent, or cotangent of an arc whoseradius is 1. A Table of Xatural Sixes is, therefore, a table showingthe values of the sines, cosines, tangents, and cotangents of all * These relations are…
Surveying
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