Documentation/How Tos/Calc: COSfunction

COS

Returns the cosine of the given angle (in radians).

Syntax:

COS(angle)

returns the (trigonometric) cosine of angle, the angle in radians.

To return the cosine of an angle in degrees, use the RADIANS function.

Example:

COS(PI()/2)

returns 0, the cosine of PI/2 radians

COS(RADIANS(60))

returns 0.5, the cosine of 60 degrees

See also:

SIN, TAN, COT

ACOS, ASIN, ATAN, ATAN2, ACOT

RADIANS, PI

Mathematical functions