    SIN(III)                     3/15/72                     SIN(III)

    NAME
         sin, cos - trigonometric functions

    SYNOPSIS
         jsr  pc,sin (cos)

         double sin(x)
         double x;

         double cos(x)
         double x;

    DESCRIPTION
         The  sine (cosine) of fr0 (resp. x), measured in radians, is
         returned (in fr0).

         The magnitude of the  argument  should  be  checked  by  the
         caller to make sure the result is meaningful.

    BUGS

                                  - 1 -