SLATEC Routines --- R9AIMP ---

*DECK R9AIMP
      SUBROUTINE R9AIMP (X, AMPL, THETA)
C***BEGIN PROLOGUE  R9AIMP
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