


      SIN(3F)                     (UNIX 5.0)                    SIN(3F)



      NAME
           sin, dsin, csin - Fortran sine intrinsic function

      SYNTAX
           real r1, r2
           double precision dp1, dp2
           complex cx1, cx2

           r2 = sin(r1)

           dp2 = dsin(dp1)
           dp2 = sin(dp1)

           cx2 = csin(cx1)
           cx2 = sin(cx1)

      DESCRIPTION
           Sin returns the sine of its argument, in the real, double-
           precision, or complex type of its argument.

           Dsin returns the double-precision sine of its double-
           precision argument.

           Csin returns the complex sine of its complex arguemnt.

           Sin works with double, real, and complex types, but the
           various forms are for programming clarity.

      SEE ALSO
           trig(3M).

























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