cos

(PHP 4, PHP 5, PHP 7, PHP 8)

cos —Cosine

Description

cos() returns the cosine of thenum parameter. Thenum parameter is in radians.

Parameters

num

An angle in radians

Return Values

The cosine ofnum

Examples

See Also

• acos() - Arc cosine
• sin() - Sine
• tan() - Tangent
• deg2rad() - Converts the number in degrees to the radian equivalent