ZQCAI(3)

SYNOPSIS
SUBROUTINE ZQCAI (LUN, KPRINT, IPASS)

NAME
zqcai - Quick check for SLATEC subroutines ZAIRY, ZBIRY

LIBRARY
SLATEC

CATEGORY
C10D

TYPE
COMPLEX (CQCAI-C, ZQCAI-Z)

KEYWORDS
QUICK CHECK, ZAIRY, ZBIRY

AUTHOR
Amos, Don, (SNL) Goudy, Sue, (SNL) Walton, Lee, (SNL)

DESCRIPTION
*Usage: INTEGER LUN, KPRINT, IPASS CALL ZQCAI (LUN, KPRINT, IPASS) *Arguments: LUN :IN is the unit number to which output is to be written. KPRINT :IN controls the amount of output, as specified in the SLATEC Guidelines. IPASS :OUT indicates whether the test passed or failed. A value of one is good, indicating no failures. *Description: *** A DOUBLE PRECISION ROUTINE *** ZQCAI is a quick check routine for the complex Airy functions generated by subroutines ZAIRY and ZBIRY. ZQCAI generates Airy functions and their derivatives from ZAIRY and ZBIRY and checks them against the Wronskian evaluation in the Z plane.

REFERENCES
Abramowitz, M. and Stegun, I. A., Handbook of Mathematical Functions, Dover Publications, New York, 1964. Amos, D. E., A Subroutine Package for Bessel Functions of a Complex Argument and Nonnegative Order, SAND85-1018, May, 1985.

ROUTINES CALLED
ZAIRY, ZBIRY, ZABS, ZSQRT, ZEXP, I1MACH, D1MACH

REVISION HISTORY (YYMMDD)
830501 DATE WRITTEN
890831 Revised to meet new SLATEC standards
930122 Added ZEXP and ZSQRT to EXTERNAL statement. (RWC)