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RedHat 9 (Linux i386) - man page for slasq5 (redhat section l)

SLASQ5(l)					)					SLASQ5(l)

NAME
       SLASQ5  -  compute  one	dqds  transform  in ping-pong form, one version for IEEE machines
       another for non IEEE machines

SYNOPSIS
       SUBROUTINE SLASQ5( I0, N0, Z, PP, TAU, DMIN, DMIN1, DMIN2, DN, DNM1, DNM2, IEEE )

	   LOGICAL	  IEEE

	   INTEGER	  I0, N0, PP

	   REAL 	  DMIN, DMIN1, DMIN2, DN, DNM1, DNM2, TAU

	   REAL 	  Z( * )

PURPOSE
       SLASQ5 computes one dqds transform in  ping-pong  form,	one  version  for  IEEE  machines
       another for non IEEE machines.

ARGUMENTS
       I0    (input) INTEGER
	     First index.

       N0    (input) INTEGER
	     Last index.

       Z     (input) REAL array, dimension ( 4*N )
	     Z holds the qd array. EMIN is stored in Z(4*N0) to avoid an extra argument.

       PP    (input) INTEGER
	     PP=0 for ping, PP=1 for pong.

       TAU   (input) REAL
	     This is the shift.

       DMIN  (output) REAL
	     Minimum value of d.

	     DMIN1 (output) REAL Minimum value of d, excluding D( N0 ).

	     DMIN2 (output) REAL Minimum value of d, excluding D( N0 ) and D( N0-1 ).

       DN    (output) REAL
	     d(N0), the last value of d.

       DNM1  (output) REAL
	     d(N0-1).

       DNM2  (output) REAL
	     d(N0-2).

       IEEE  (input) LOGICAL
	     Flag for IEEE or non IEEE arithmetic.

LAPACK version 3.0			   15 June 2000 				SLASQ5(l)


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