# r9aimp.f

          SUBROUTINE R9AIMP (X, AMPL, THETA)
    C***BEGIN PROLOGUE  R9AIMP
    ....
    ....
    Warning:   this routine is not intended to be user-callable.
    ....
    ....
    C***SUBSIDIARY
    C***PURPOSE  Evaluate the Airy modulus and phase.
    C***LIBRARY   SLATEC (FNLIB)
    C***CATEGORY  C10D
    C***TYPE      SINGLE PRECISION (R9AIMP-S, D9AIMP-D)
    C***KEYWORDS  AIRY FUNCTION, FNLIB, MODULUS, PHASE, SPECIAL FUNCTIONS
    C***AUTHOR  Fullerton, W., (LANL)
    C***DESCRIPTION
    C
    C Evaluate the Airy modulus and phase for X .LE. -1.0
    C
    C Series for AM21       on the interval -1.25000D-01 to  0.
    C                                        with weighted error   2.89E-17
    C                                         log weighted error  16.54
    C                               significant figures required  14.15
    C                                    decimal places required  17.34
    C
    C Series for ATH1       on the interval -1.25000D-01 to  0.
    C                                        with weighted error   2.53E-17
    C                                         log weighted error  16.60
    C                               significant figures required  15.15
    C                                    decimal places required  17.38
    C
    C Series for AM22       on the interval -1.00000D+00 to -1.25000D-01
    C                                        with weighted error   2.99E-17
    C                                         log weighted error  16.52
    C                               significant figures required  14.57
    C                                    decimal places required  17.28
    C
    C Series for ATH2       on the interval -1.00000D+00 to -1.25000D-01
    C                                        with weighted error   2.57E-17
    C                                         log weighted error  16.59
    C                               significant figures required  15.07
    C                                    decimal places required  17.34
    C
    C***REFERENCES  (NONE)
    C***ROUTINES CALLED  CSEVL, INITS, R1MACH, XERMSG
    C***REVISION HISTORY  (YYMMDD)
    C   770701  DATE WRITTEN
    C   890206  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   900720  Routine changed from user-callable to subsidiary.  (WRB)
    C***END PROLOGUE  R9AIMP