ZQCBI(3)

SYNOPSIS
SUBROUTINE ZQCBI (LUN, KPRINT, IPASS)

NAME
zqcbi - Quick check for SLATEC subroutine ZBESI

LIBRARY
SLATEC

CATEGORY
C10B4

TYPE
COMPLEX (CQCBI-C, ZQCBI-Z)

KEYWORDS
QUICK CHECK, ZBESI

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

DESCRIPTION
*Usage: INTEGER LUN, KPRINT, IPASS CALL ZQCBI (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 *** ZQCBI is a quick check routine for the complex I Bessel function generated by subroutine ZBESI. ZQCBI generates sequences crossing formula boundaries which are started by one formula and terminated in a region where another formula applies. The terminated value is checked by the formula appropriate to that region.

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
ZBESI, ZBESK, ZWRSK, ZABS, ZDIV, I1MACH, D1MACH

REVISION HISTORY (YYMMDD)
830501 DATE WRITTEN
890831 Revised to meet new SLATEC standards