sget40.f - Man Page
TESTING/EIG/sget40.f
Synopsis
Functions/Subroutines
subroutine sget40 (rmax, lmax, ninfo, knt, nin)
SGET40
Function/Subroutine Documentation
subroutine sget40 (real rmax, integer lmax, integer, dimension( 2 ) ninfo, integer knt, integer nin)
SGET40
Purpose:
SGET40 tests STGEXC, 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, STGEXC 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 REAL 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 ) = STGEXC without accumulation returned INFO nonzero NINFO( 2 ) = STGEXC 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 sget40.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Referenced By
The man page sget40(3) is an alias of sget40.f(3).
Tue Nov 28 2023 12:08:42 Version 3.12.0 LAPACK