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slasq6.f(3)                         LAPACK                         slasq6.f(3)

NAME
       slasq6.f -

SYNOPSIS
   Functions/Subroutines
       subroutine slasq6 (I0, N0, Z, PP, DMIN, DMIN1, DMIN2, DN, DNM1, DNM2)
           SLASQ6 computes one dqd transform in ping-pong form. Used by sbdsqr
           and sstegr.

Function/Subroutine Documentation
   subroutine slasq6 (integerI0, integerN0, real, dimension( * )Z, integerPP,
       realDMIN, realDMIN1, realDMIN2, realDN, realDNM1, realDNM2)
       SLASQ6 computes one dqd transform in ping-pong form. Used by sbdsqr and
       sstegr.

       Purpose:

            SLASQ6 computes one dqd (shift equal to zero) transform in
            ping-pong form, with protection against underflow and overflow.

       Parameters:
           I0

                     I0 is INTEGER
                   First index.

           N0

                     N0 is INTEGER
                   Last index.

           Z

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

           PP

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

           DMIN

                     DMIN is REAL
                   Minimum value of d.

           DMIN1

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

           DMIN2

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

           DN

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

           DNM1

                     DNM1 is REAL
                   d(N0-1).

           DNM2

                     DNM2 is REAL
                   d(N0-2).

       Author:
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Date:
           September 2012

       Definition at line 119 of file slasq6.f.

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

Version 3.4.2                   Sat Nov 16 2013                    slasq6.f(3)