197 COS cosine Purpose To calculate the cosine of an angle. Note that the number in parenthesis (the angle) is expressed in radians and not in degrees. To convert from degrees to radians use the function RAD . Examples PRINT COS(2.45) 780 X=COS(Y) 655 Number=COS (RAD (45)) Description A function giving the cosine of its argument. The argument must be given in radians. Syntax = COS ( ) SIN , TAN , ACS , ASN , ATN , DEG , RAD Associated keywords