table of contents
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/dget40.f(3) | Library Functions Manual | /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/dget40.f(3) |
NAME¶
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/dget40.f
SYNOPSIS¶
Functions/Subroutines¶
subroutine DGET40 (rmax, lmax, ninfo, knt, nin)
DGET40
Function/Subroutine Documentation¶
subroutine DGET40 (double precision rmax, integer lmax, integer, dimension( 2 ) ninfo, integer knt, integer nin)¶
DGET40
Purpose:
!> !> DGET40 tests DTGEXC, a routine for swapping adjacent blocks (either !> 1 by 1 or 2 by 2) on the diagonal of a pencil in real generalized Schur form. !> Thus, DTGEXC computes an orthogonal matrices Q and Z such that !> !> Q' * ( [ A B ], [ D E ] ) * Z = ( [ C1 B1 ], [ F1 E1 ] ) !> ( [ 0 C ] [ F ] ) ( [ 0 A1 ] [ D1] ) !> !> where (C1,F1) is similar to (C,F) and (A1,D1) is similar to (A,D). !> Both (A,D) and (C,F) are assumed to be in standard form !> and (A1,D1) and (C1,F1) are returned with the !> same properties. !>
Parameters
RMAX
!> RMAX is DOUBLE PRECISION !> Value of the largest test ratio. !>
LMAX
!> LMAX is INTEGER !> Example number where largest test ratio achieved. !>
NINFO
!> NINFO is INTEGER array, dimension (2) !> NINFO( 1 ) = DTGEXC without accumulation returned INFO nonzero !> NINFO( 2 ) = DTGEXC with accumulation returned INFO nonzero !>
KNT
!> KNT is INTEGER !> Total number of examples tested. !>
NIN
!> NIN is INTEGER !> Input logical unit number. !>
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Definition at line 84 of file dget40.f.
Author¶
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