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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

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