Csc-1

Csc-1, CSC-1, csc-1, or csc&minus;1 may refer to:


 * csc x&minus;1 = csc(x)&minus;1 = excsc(x) or excosecant of x, an old trigonometric function
 * csc&minus;1y = csc&minus;1(y), sometimes interpreted as arccsc(y) or arccosecant of y, the compositional inverse of the trigonometric function cosecant (see below for ambiguity)
 * csc&minus;1x = csc&minus;1(x), sometimes interpreted as (csc(x))&minus;1 = $1⁄csc(x)$ = sin(x) or sine of x, the multiplicative inverse (or reciprocal) of the trigonometric function cosecant (see above for ambiguity)
 * csc x&minus;1, sometimes interpreted as csc(x&minus;1) = csc($1⁄x$), the cosecant of the multiplicative inverse (or reciprocal) of x (see below for ambiguity)
 * csc x&minus;1, sometimes interpreted as (csc(x))&minus;1 = $1⁄csc(x)$ = sin(x) or sine of x, the multiplicative inverse (or reciprocal) of the trigonometric function cosecant (see above for ambiguity)