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RedHat 9 (Linux i386) - man page for dlasq5 (redhat section l)

DLASQ5(l)						  )						    DLASQ5(l)

NAME
DLASQ5 - compute one dqds transform in ping-pong form, one version for IEEE machines another for non IEEE machines
SYNOPSIS
SUBROUTINE DLASQ5( I0, N0, Z, PP, TAU, DMIN, DMIN1, DMIN2, DN, DNM1, DNM2, IEEE ) LOGICAL IEEE INTEGER I0, N0, PP DOUBLE PRECISION DMIN, DMIN1, DMIN2, DN, DNM1, DNM2, TAU DOUBLE PRECISION Z( * )
PURPOSE
DLASQ5 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) DOUBLE PRECISION 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) DOUBLE PRECISION This is the shift. DMIN (output) DOUBLE PRECISION Minimum value of d. DMIN1 (output) DOUBLE PRECISION Minimum value of d, excluding D( N0 ). DMIN2 (output) DOUBLE PRECISION Minimum value of d, excluding D( N0 ) and D( N0-1 ). DN (output) DOUBLE PRECISION d(N0), the last value of d. DNM1 (output) DOUBLE PRECISION d(N0-1). DNM2 (output) DOUBLE PRECISION d(N0-2). IEEE (input) LOGICAL Flag for IEEE or non IEEE arithmetic. LAPACK version 3.0 15 June 2000 DLASQ5(l)


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