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CentOS 7.0 - man page for slasq5 (centos section 3)

slasq5.f(3)							      LAPACK							       slasq5.f(3)

NAME
slasq5.f -
SYNOPSIS
Functions/Subroutines subroutine slasq5 (I0, N0, Z, PP, TAU, SIGMA, DMIN, DMIN1, DMIN2, DN, DNM1, DNM2, IEEE, EPS) SLASQ5 computes one dqds transform in ping-pong form. Used by sbdsqr and sstegr. Function/Subroutine Documentation subroutine slasq5 (integerI0, integerN0, real, dimension( * )Z, integerPP, realTAU, realSIGMA, realDMIN, realDMIN1, realDMIN2, realDN, realDNM1, realDNM2, logicalIEEE, realEPS) SLASQ5 computes one dqds transform in ping-pong form. Used by sbdsqr and sstegr. Purpose: SLASQ5 computes one dqds transform in ping-pong form, one version for IEEE machines another for non IEEE machines. 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. TAU TAU is REAL This is the shift. 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). IEEE IEEE is LOGICAL Flag for IEEE or non IEEE arithmetic. Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: September 2012 Definition at line 132 of file slasq5.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.2 Tue Sep 25 2012 slasq5.f(3)