*DECK ZWRSK SUBROUTINE ZWRSK (ZRR, ZRI, FNU, KODE, N, YR, YI, NZ, CWR, CWI, + TOL, ELIM, ALIM) C***BEGIN PROLOGUE ZWRSK C***SUBSIDIARY C***PURPOSE Subsidiary to ZBESI and ZBESK C***LIBRARY SLATEC C***TYPE ALL (CWRSK-A, ZWRSK-A) C***AUTHOR Amos, D. E., (SNL) C***DESCRIPTION C C ZWRSK COMPUTES THE I BESSEL FUNCTION FOR RE(Z).GE.0.0 BY C NORMALIZING THE I FUNCTION RATIOS FROM ZRATI BY THE WRONSKIAN C C***SEE ALSO ZBESI, ZBESK C***ROUTINES CALLED D1MACH, ZABS, ZBKNU, ZRATI C***REVISION HISTORY (YYMMDD) C 830501 DATE WRITTEN C 910415 Prologue converted to Version 4.0 format. (BAB) C***END PROLOGUE ZWRSK