Sin-1

Sin-1, SIN-1, sin-1, or sin&minus;1 may refer to:


 * SIN-1, Linsidomine (3-morpholinosydnonimine), a drug acting as a vasodilator
 * sin x&minus;1 = sin(x)&minus;1 = &minus;(1&minus;sin(x)) = &minus;cvs(x) or negative coversine of x, the additive inverse (or negation) of an old trigonometric function
 * sin&minus;1y = sin&minus;1(y), sometimes interpreted as arcsin(y) or arcsine of y, the compositional inverse of the trigonometric function sine (see below for ambiguity)
 * sin&minus;1x = sin&minus;1(x), sometimes interpreted as (sin(x))&minus;1 = $1⁄sin(x)$ = csc(x) or cosecant of x, the multiplicative inverse (or reciprocal) of the trigonometric function sine (see above for ambiguity)
 * sin x&minus;1, sometimes interpreted as sin(x&minus;1) = sin($1⁄x$), the sine of the multiplicative inverse (or reciprocal) of x (see below for ambiguity)
 * sin x&minus;1, sometimes interpreted as (sin(x))&minus;1 = $1⁄sin(x)$ = csc(x) or cosecant of x, the multiplicative inverse (or reciprocal) of the trigonometric function sine (see above for ambiguity)