Cot-1

Cot-1, COT-1, cot-1, or cot&minus;1 may refer to:


 * Cot-1 DNA, used in comparative genomic hybridization
 * cot&minus;1y = cot&minus;1(y), sometimes interpreted as arccot(y) or arccotangent of y, the compositional inverse of the trigonometric function cotangent (see below for ambiguity)
 * cot&minus;1x = cot&minus;1(x), sometimes interpreted as (cot(x))&minus;1 = $1⁄cot(x)$ = tan(x) or tangent of x, the multiplicative inverse (or reciprocal) of the trigonometric function cotangent (see above for ambiguity)
 * cot x&minus;1, sometimes interpreted as cot(x&minus;1) = cot($1⁄x$), the cotangent of the multiplicative inverse (or reciprocal) of x (see below for ambiguity)
 * cot x&minus;1, sometimes interpreted as (cot(x))&minus;1 = $1⁄cot(x)$ = tan(x) or tangent of x, the multiplicative inverse (or reciprocal) of the trigonometric function cotangent (see above for ambiguity)