# dasinh.f

          DOUBLE PRECISION FUNCTION DASINH (X)
    C***BEGIN PROLOGUE  DASINH
    C***PURPOSE  Compute the arc hyperbolic sine.
    C***LIBRARY   SLATEC (FNLIB)
    C***CATEGORY  C4C
    C***TYPE      DOUBLE PRECISION (ASINH-S, DASINH-D, CASINH-C)
    C***KEYWORDS  ARC HYPERBOLIC SINE, ASINH, ELEMENTARY FUNCTIONS, FNLIB,
    C             INVERSE HYPERBOLIC SINE
    C***AUTHOR  Fullerton, W., (LANL)
    C***DESCRIPTION
    C
    C DASINH(X) calculates the double precision arc hyperbolic
    C sine for double precision argument X.
    C
    C***REFERENCES  (NONE)
    C***ROUTINES CALLED  D1MACH, DCSEVL, INITDS
    C***REVISION HISTORY  (YYMMDD)
    C   770601  DATE WRITTEN
    C   890531  Changed all specific intrinsics to generic.  (WRB)
    C   890531  REVISION DATE from Version 3.2
    C   891214  Prologue converted to Version 4.0 format.  (BAB)
    C***END PROLOGUE  DASINH