_ELTRAN(3F)							   _ELTRAN(3F)

NAME    [Toc]    [Back]

     ELTRAN, SELTRAN  -	 EISPACK routine.  This	subroutine accumulates the
     stabilized	elementary similarity transformations used in the reduction of
     a REAL GENERAL matrix to upper Hessenberg form by	ELMHES.

SYNOPSYS    [Toc]    [Back]

	  subroutine  eltran(nm, n, low, igh, a, int, z)
	  integer	   nm, n, low, igh, int(igh)
	  double precision a(nm,igh), z(nm,n)

	  subroutine seltran(nm, n, low, igh, a, int, z)
	  integer	   nm, n, low, igh, int(igh)
	  real		   a(nm,igh), z(nm,n)

DESCRIPTION    [Toc]    [Back]

     On	INPUT

     NM	must be	set to the row dimension of two-dimensional array parameters
     as	declared in the	calling	program	dimension statement.

     N is the order of the matrix.

     LOW and IGH are integers determined by the	balancing subroutine  BALANC.
     If	 BALANC	 has not been used, set	LOW=1, IGH=N.

     A contains	the multipliers	which were used	in the reduction by  ELMHES
     in	its lower triangle below the subdiagonal.

     INT contains information on the rows and columns interchanged in the
     reduction by  ELMHES.  only elements LOW through IGH are used.  On	OUTPUT

     Z contains	the transformation matrix produced in the reduction by
     ELMHES.  Questions	and comments should be directed	to B. S. Garbow,
     APPLIED MATHEMATICS DIVISION, ARGONNE NATIONAL LABORATORY


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