Meaning of coversed sine | Babel Free

Definitions

The trigonometric function 1 − sin(x).

Equivalents

Examples

“The cosine of an arc is the sine of its complement.† In like manner, the coversed sine, cotangent, and cosecant of an arc, are respectively the versed sine, tangent, and secant of its complement.”

“At the top of the page on the left-hand side is placed the number of degrees, and in the left-hand column each minute of the degree, opposite to which are arranged the numerical values of the sine, coversed sine, &c, of the corresponding angle in those columns, at the top of which those terms are placed.”

“For the coversed sine; subtract the sine of the angle from 1. Thus, for the same angle we have the coversed sine, 1 — ·36650 = ·6335.”

“Hence the cosines and versed sines of zenith distances are respectively equal to the sines and coversed sines of the corresponding angular elevations.”

CEFR level