blktr1.f
SUBROUTINE BLKTR1 (N, AN, BN, CN, M, AM, BM, CM, IDIMY, Y, B, W1,
+ W2, W3, WD, WW, WU, PRDCT, CPRDCT)
C***BEGIN PROLOGUE BLKTR1
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Warning: this routine is not intended to be user-callable.
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C***SUBSIDIARY
C***PURPOSE Subsidiary to BLKTRI
C***LIBRARY SLATEC
C***TYPE SINGLE PRECISION (BLKTR1-S, CBLKT1-C)
C***AUTHOR (UNKNOWN)
C***DESCRIPTION
C
C BLKTR1 solves the linear system set up by BLKTRI.
C
C B contains the roots of all the B polynomials.
C W1,W2,W3,WD,WW,WU are all working arrays.
C PRDCT is either PRODP or PROD depending on whether the boundary
C conditions in the M direction are periodic or not.
C CPRDCT is either CPRODP or CPROD which are the complex versions
C of PRODP and PROD. These are called in the event that some
C of the roots of the B sub P polynomial are complex.
C
C***SEE ALSO BLKTRI
C***ROUTINES CALLED INDXA, INDXB, INDXC
C***COMMON BLOCKS CBLKT
C***REVISION HISTORY (YYMMDD)
C 801001 DATE WRITTEN
C 891214 Prologue converted to Version 4.0 format. (BAB)
C 900402 Added TYPE section. (WRB)
C***END PROLOGUE BLKTR1