Oracle PL/SQL Programming, Third Edition

Name

COS

Synopsis

The COS trigonometric function returns the cosine of the specified angle. The specification for the COS function is:

FUNCTION COS (angle NUMBER) RETURN NUMBER;

where angle must be expressed in radians. If your angle is specified in degrees, then you should call COS as follows:

my_cosine := COS (ACOS(-1)*angle_in_degrees/180);