packet loss problem Post: 302279883

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LEARN ABOUT CENTOS

dlasq4

dlasq4.f(3)							      LAPACK							       dlasq4.f(3)

NAME

       dlasq4.f -

SYNOPSIS

   Functions/Subroutines
       subroutine dlasq4 (I0, N0, Z, PP, N0IN, DMIN, DMIN1, DMIN2, DN, DN1, DN2, TAU, TTYPE, G)
	   DLASQ4 computes an approximation to the smallest eigenvalue using values of d from the previous transform. Used by sbdsqr.

Function/Subroutine Documentation
   subroutine dlasq4 (integerI0, integerN0, double precision, dimension( * )Z, integerPP, integerN0IN, double precisionDMIN, double
       precisionDMIN1, double precisionDMIN2, double precisionDN, double precisionDN1, double precisionDN2, double precisionTAU, integerTTYPE,
       double precisionG)
       DLASQ4 computes an approximation to the smallest eigenvalue using values of d from the previous transform. Used by sbdsqr.

       Purpose:

	    DLASQ4 computes an approximation TAU to the smallest eigenvalue
	    using values of d from the previous transform.

       Parameters:
	   I0

		     I0 is INTEGER
		   First index.

	   N0

		     N0 is INTEGER
		   Last index.

	   Z

		     Z is DOUBLE PRECISION array, dimension ( 4*N )
		   Z holds the qd array.

	   PP

		     PP is INTEGER
		   PP=0 for ping, PP=1 for pong.

	   N0IN

		     N0IN is INTEGER
		   The value of N0 at start of EIGTEST.

	   DMIN

		     DMIN is DOUBLE PRECISION
		   Minimum value of d.

	   DMIN1

		     DMIN1 is DOUBLE PRECISION
		   Minimum value of d, excluding D( N0 ).

	   DMIN2

		     DMIN2 is DOUBLE PRECISION
		   Minimum value of d, excluding D( N0 ) and D( N0-1 ).

	   DN

		     DN is DOUBLE PRECISION
		   d(N)

	   DN1

		     DN1 is DOUBLE PRECISION
		   d(N-1)

	   DN2

		     DN2 is DOUBLE PRECISION
		   d(N-2)

	   TAU

		     TAU is DOUBLE PRECISION
		   This is the shift.

	   TTYPE

		     TTYPE is INTEGER
		   Shift type.

	   G

		     G is REAL
		   G is passed as an argument in order to save its value between
		   calls to DLASQ4.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   September 2012

       Further Details:

	     CNST1 = 9/16

       Definition at line 151 of file dlasq4.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.2							  Tue Sep 25 2012						       dlasq4.f(3)