 
      FUNCTION ASINH(X)
C***BEGIN PROLOGUE  ASINH
C***DATE WRITTEN   770401   (YYMMDD)
C***REVISION DATE  820801   (YYMMDD)
C***CATEGORY NO.  C4C
C***KEYWORDS  ARC HYPERBOLIC SINE,ASINH,ELEMENTARY FUNCTION
C***AUTHOR  FULLERTON, W., (LANL)
C***PURPOSE  Computes the arc hyperbolic Sine.
C***DESCRIPTION
C
C ASINH(X) computes the arc hyperbolic sine of X.
C
C Series for ASNH       on the interval  0.          to  1.00000D+00
C                                        with weighted error   2.19E-17
C                                         log weighted error  16.66
C                               significant figures required  15.60
C                                    decimal places required  17.31
C***REFERENCES  (NONE)
C***ROUTINES CALLED  CSEVL,INITS,R1MACH
C***END PROLOGUE  ASINH
 
 
