COS (cosine)

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COS (cosine)

Syntax:

COS(Number)

Description:

Returns the cosine of an angle.

The angle must be specified in radians.

Tip:

You can use the RADIANS function to convert an angle given in degrees into radians.

Example:

COS(PI()) returns -1

COS(RADIANS(180)) returns -1

See also:

ACOS, SIN, TAN