DWNLIT(3)

SYNOPSIS
SUBROUTINE DWNLIT (W, MDW, M, N, L, IPIVOT, ITYPE, H, SCALE, + RNORM, IDOPE, DOPE, DONE)

NAME
dwnlit - Subsidiary to DWNNLS

LIBRARY
SLATEC

TYPE
DOUBLE PRECISION (WNLIT-S, DWNLIT-D)

AUTHOR
Hanson, R. J., (SNLA) Haskell, K. H., (SNLA)

DESCRIPTION
This is a companion subprogram to DWNNLS( ). The documentation for DWNNLS( ) has complete usage instructions. Note The M by (N+1) matrix W( , ) contains the rt. hand side B as the (N+1)st col. Triangularize L1 by L1 subsystem, where L1=MIN(M,L), with col interchanges.

SEE ALSO
DWNNLS

ROUTINES CALLED
DCOPY, DH12, DROTM, DROTMG, DSCAL, DSWAP, DWNLT1, DWNLT2, DWNLT3, IDAMAX

REVISION HISTORY (YYMMDD)
790701 DATE WRITTEN
890531 Changed all specific intrinsics to generic. (WRB)
890618 Completely restructured and revised. (WRB & RWC)
890620 Revised to make WNLT1, WNLT2, and WNLT3 subroutines. (RWC)
891214 Prologue converted to Version 4.0 format. (BAB)
900328 Added TYPE section. (WRB)
900604 DP version created from SP version. . (RWC)