cos From AutoCad AutoLISP Functions previous page next page cons C Functions cvunit AutoLISP Reference Guide > AutoLISP Functions > C Functions > cos Returns the cosine of an angle expressed in radians (cos ang) Arguments ang An angle, in radians. Return Values The cosine of ang, in radians. Examples Command: (cos 0.0) 1.0 Command: (cos pi) -1.0 previous page start next page