r9aimp.f
SUBROUTINE R9AIMP (X, AMPL, THETA)
C***BEGIN PROLOGUE R9AIMP
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Warning: this routine is not intended to be user-callable.
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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