table of contents
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/sget36.f(3) | Library Functions Manual | /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/sget36.f(3) |
NAME¶
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/sget36.f
SYNOPSIS¶
Functions/Subroutines¶
subroutine SGET36 (rmax, lmax, ninfo, knt, nin)
SGET36
Function/Subroutine Documentation¶
subroutine SGET36 (real rmax, integer lmax, integer, dimension( 3 ) ninfo, integer knt, integer nin)¶
SGET36
Purpose:
!> !> SGET36 tests STREXC, a routine for moving blocks (either 1 by 1 or !> 2 by 2) on the diagonal of a matrix in real Schur form. Thus, SLAEXC !> computes an orthogonal matrix Q such that !> !> Q' * T1 * Q = T2 !> !> and where one of the diagonal blocks of T1 (the one at row IFST) has !> been moved to position ILST. !> !> The test code verifies that the residual Q'*T1*Q-T2 is small, that T2 !> is in Schur form, and that the final position of the IFST block is !> ILST (within +-1). !> !> The test matrices are read from a file with logical unit number NIN. !>
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 (3) !> NINFO(J) is the number of examples where INFO=J. !>
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 87 of file sget36.f.
Author¶
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Version 3.12.0 | LAPACK |