Provided by: liblapack-doc_3.3.1-1_all bug

NAME

       LAPACK-3  -  computes  one  dqd  (shift  equal  to zero) transform in ping-pong form, with
       protection against underflow and overflow

SYNOPSIS

       SUBROUTINE SLASQ6( I0, N0, Z, PP, DMIN, DMIN1, DMIN2, DN, DNM1, DNM2 )

           INTEGER        I0, N0, PP

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

           REAL           Z( * )

PURPOSE

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

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.

        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).

 LAPACK routine (version 3.2)               April 2011                            SLASQ6(3lapack)