.TH "SRC/slasq6.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
SRC/slasq6.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBslasq6\fP (i0, n0, z, pp, dmin, dmin1, dmin2, dn, dnm1, dnm2)"
.br
.RI "\fBSLASQ6\fP computes one dqd transform in ping-pong form\&. Used by sbdsqr and sstegr\&. "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine slasq6 (integer i0, integer n0, real, dimension( * ) z, integer pp, real dmin, real dmin1, real dmin2, real dn, real dnm1, real dnm2)"

.PP
\fBSLASQ6\fP computes one dqd transform in ping-pong form\&. Used by sbdsqr and sstegr\&.  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
!>
!> SLASQ6 computes one dqd (shift equal to zero) transform in
!> ping-pong form, with protection against underflow and overflow\&.
!> 
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fII0\fP 
.PP
.nf
!>          I0 is INTEGER
!>        First index\&.
!> 
.fi
.PP
.br
\fIN0\fP 
.PP
.nf
!>          N0 is INTEGER
!>        Last index\&.
!> 
.fi
.PP
.br
\fIZ\fP 
.PP
.nf
!>          Z is REAL array, dimension ( 4*N )
!>        Z holds the qd array\&. EMIN is stored in Z(4*N0) to avoid
!>        an extra argument\&.
!> 
.fi
.PP
.br
\fIPP\fP 
.PP
.nf
!>          PP is INTEGER
!>        PP=0 for ping, PP=1 for pong\&.
!> 
.fi
.PP
.br
\fIDMIN\fP 
.PP
.nf
!>          DMIN is REAL
!>        Minimum value of d\&.
!> 
.fi
.PP
.br
\fIDMIN1\fP 
.PP
.nf
!>          DMIN1 is REAL
!>        Minimum value of d, excluding D( N0 )\&.
!> 
.fi
.PP
.br
\fIDMIN2\fP 
.PP
.nf
!>          DMIN2 is REAL
!>        Minimum value of d, excluding D( N0 ) and D( N0-1 )\&.
!> 
.fi
.PP
.br
\fIDN\fP 
.PP
.nf
!>          DN is REAL
!>        d(N0), the last value of d\&.
!> 
.fi
.PP
.br
\fIDNM1\fP 
.PP
.nf
!>          DNM1 is REAL
!>        d(N0-1)\&.
!> 
.fi
.PP
.br
\fIDNM2\fP 
.PP
.nf
!>          DNM2 is REAL
!>        d(N0-2)\&.
!> 
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 

.PP
Univ\&. of California Berkeley 

.PP
Univ\&. of Colorado Denver 

.PP
NAG Ltd\&. 
.RE
.PP

.PP
Definition at line \fB117\fP of file \fBslasq6\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.