SLATEC Routines --- DASINH ---

*DECK DASINH
      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