BESJ0(3)

SYNOPSIS
FUNCTION BESJ0 (X)

NAME
besj0 - Compute the Bessel function of the first kind of order zero.

LIBRARY
SLATEC (FNLIB)

CATEGORY
C10A1

TYPE
SINGLE PRECISION (BESJ0-S, DBESJ0-D)

KEYWORDS
BESSEL FUNCTION, FIRST KIND, FNLIB, ORDER ZERO, SPECIAL FUNCTIONS

AUTHOR
Fullerton, W., (LANL)

DESCRIPTION
BESJ0(X) calculates the Bessel function of the first kind of order zero for real argument X. Series for BJ0 on the interval 0. to 1.60000D+01 with weighted error 7.47E-18 log weighted error 17.13 significant figures required 16.98 decimal places required 17.68 Series for BM0 on the interval 0. to 6.25000D-02 with weighted error 4.98E-17 log weighted error 16.30 significant figures required 14.97 decimal places required 16.96 Series for BTH0 on the interval 0. to 6.25000D-02 with weighted error 3.67E-17 log weighted error 16.44 significant figures required 15.53 decimal places required 17.13

REFERENCES
(NONE)

ROUTINES CALLED
CSEVL, INITS, R1MACH, XERMSG

REVISION HISTORY (YYMMDD)
770401 DATE WRITTEN
890210 REVISION DATE from Version 3.2
891214 Prologue converted to Version 4.0 format. (BAB)
900315 CALLs to XERROR changed to CALLs to XERMSG. (THJ)
900326 Removed duplicate information from DESCRIPTION section. (WRB)