poisd2.f
SUBROUTINE POISD2 (MR, NR, ISTAG, BA, BB, BC, Q, IDIMQ, B, W, D,
+ TCOS, P)
C***BEGIN PROLOGUE POISD2
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Warning: this routine is not intended to be user-callable.
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C***SUBSIDIARY
C***PURPOSE Subsidiary to GENBUN
C***LIBRARY SLATEC
C***TYPE SINGLE PRECISION (POISD2-S, CMPOSD-C)
C***AUTHOR (UNKNOWN)
C***DESCRIPTION
C
C Subroutine to solve Poisson's equation for Dirichlet boundary
C conditions.
C
C ISTAG = 1 if the last diagonal block is the matrix A.
C ISTAG = 2 if the last diagonal block is the matrix A+I.
C
C***SEE ALSO GENBUN
C***ROUTINES CALLED COSGEN, S1MERG, TRIX
C***REVISION HISTORY (YYMMDD)
C 801001 DATE WRITTEN
C 890531 Changed all specific intrinsics to generic. (WRB)
C 891214 Prologue converted to Version 4.0 format. (BAB)
C 900402 Added TYPE section. (WRB)
C 920130 Modified to use merge routine S1MERG rather than deleted
C routine MERGE. (WRB)
C***END PROLOGUE POISD2