


      ASIN(3F)                    (UNIX 5.0)                   ASIN(3F)



      NAME
           asin, dasin - Fortran arcsine intrinsic function

      SYNTAX
           real r1, r2
           double precision dp1, dp2

           r2 = asin(r1)

           dp2 = dasin(dp1)
           dp2 = asin(dp1)

      DESCRIPTION
           Asin returns the arcsine of its argument, in the real or
           double type that matches its argument.

           Dasin returns the double-precision arcsine of its double-
           precision argument.

           Asin works with real or double types, but Dasin is for
           programming clarity.

      SEE ALSO
           trig(3M).































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