COMPLEX FUNCTION CASINH(Z)
C***BEGIN PROLOGUE  CASINH
C***DATE WRITTEN   770401   (YYMMDD)
C***REVISION DATE  820801   (YYMMDD)
C***CATEGORY NO.  C4C
C***KEYWORDS  ARC HYPERBOLIC SINE,COMPLEX,ELEMENTARY FUNCTION
C***AUTHOR  FULLERTON, W., (LANL)
C***PURPOSE  Computes the complex arc hyperbolic Sine.
C***DESCRIPTION
C
C CASINH(Z) calculates the complex arc hyperbolic sine of Z.
C***REFERENCES  (NONE)
C***ROUTINES CALLED  CASIN
C***END PROLOGUE  CASINH