DOUBLE PRECISION FUNCTION DAI(X)
C***BEGIN PROLOGUE  DAI
C***DATE WRITTEN   770701   (YYMMDD)
C***REVISION DATE  820801   (YYMMDD)
C***CATEGORY NO.  C10D
C***KEYWORDS  AIRY FUNCTION,DOUBLE PRECISION,SPECIAL FUNCTION
C***AUTHOR  FULLERTON, W., (LANL)
C***PURPOSE  Calculates the d.p. Airy function.
C***DESCRIPTION
C
C DAI(X) calculates the double precision Airy function for double
C precision argument X.
C
C Series for AIF        on the interval -1.00000E+00 to  1.00000E+00
C                                        with weighted error   8.37E-33
C                                         log weighted error  32.08
C                               significant figures required  30.87
C                                    decimal places required  32.63
C
C Series for AIG        on the interval -1.00000E+00 to  1.00000E+00
C                                        with weighted error   7.47E-34
C                                         log weighted error  33.13
C                               significant figures required  31.50
C                                    decimal places required  33.68
C***REFERENCES  (NONE)
C***ROUTINES CALLED  D1MACH,D9AIMP,DAIE,DCSEVL,INITDS,XERROR
C***END PROLOGUE  DAI