COS function
Description
Cosine function. COS(x) returns the cosine of an angle x. The result range is [-1..1]. The argument x must be expressed in radians. To convert degrees to radians you use the RADIANS function.
Examples
COS(PI()/3) equals 0.5.
COS(RADIANS(90)) equals 0.
COS(3.14159265) equals -1.
Calculator
Graph
