yairy.f
SUBROUTINE YAIRY (X, RX, C, BI, DBI)
C***BEGIN PROLOGUE YAIRY
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Warning: this routine is not intended to be user-callable.
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C***SUBSIDIARY
C***PURPOSE Subsidiary to BESJ and BESY
C***LIBRARY SLATEC
C***TYPE SINGLE PRECISION (YAIRY-S, DYAIRY-D)
C***AUTHOR Amos, D. E., (SNLA)
C Daniel, S. L., (SNLA)
C***DESCRIPTION
C
C YAIRY computes the Airy function BI(X)
C and its derivative DBI(X) for ASYJY
C
C INPUT
C
C X - Argument, computed by ASYJY, X unrestricted
C RX - RX=SQRT(ABS(X)), computed by ASYJY
C C - C=2.*(ABS(X)**1.5)/3., computed by ASYJY
C
C OUTPUT
C BI - Value of function BI(X)
C DBI - Value of the derivative DBI(X)
C
C***SEE ALSO BESJ, BESY
C***ROUTINES CALLED (NONE)
C***REVISION HISTORY (YYMMDD)
C 750101 DATE WRITTEN
C 891214 Prologue converted to Version 4.0 format. (BAB)
C 900328 Added TYPE section. (WRB)
C 910408 Updated the AUTHOR section. (WRB)
C***END PROLOGUE YAIRY