SLATEC Routines --- DAI ---

*DECK DAI
      DOUBLE PRECISION FUNCTION DAI (X)
C***BEGIN PROLOGUE  DAI
C***PURPOSE  Evaluate the Airy function.
C***LIBRARY   SLATEC (FNLIB)
C***CATEGORY  C10D
C***TYPE      DOUBLE PRECISION (AI-S, DAI-D)
C***KEYWORDS  AIRY FUNCTION, FNLIB, SPECIAL FUNCTIONS
C***AUTHOR  Fullerton, W., (LANL)
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
C***REFERENCES  (NONE)
C***ROUTINES CALLED  D1MACH, D9AIMP, DAIE, DCSEVL, INITDS, XERMSG
C***REVISION HISTORY  (YYMMDD)
C   770701  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   900315  CALLs to XERROR changed to CALLs to XERMSG.  (THJ)
C   920618  Removed space from variable names.  (RWC, WRB)
C***END PROLOGUE  DAI