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BSbackward1(3)			  BlockSolve95			  BSbackward1(3)

NAME
     BSbackward1 - Backward triangular matrix multiplication on a single vector

INPUT PARAMETERS
     A	    - The sparse matrix
     x	    - The input vector
     comm   - The communication structure for A
     procinfo
	    - the usual processor information

OUTPUT PARAMETERS
     b	    - on exit contains A*x

RETURNS
     void

NOTES
     We assume that A has no i-nodes or cliques

SYNOPSIS
     void BSbackward1(BSpar_mat *A, FLOAT *x, FLOAT *b,
       BScomm *comm, BSprocinfo *procinfo)

LOCATION
      BlockSolve95/src/BSbackward1.c

				   10/26/1995			  BSbackward1(3)

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