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/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/dget35.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/dget35.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/EIG/dget35.f

SYNOPSIS

Functions/Subroutines


subroutine DGET35 (rmax, lmax, ninfo, knt)
DGET35

Function/Subroutine Documentation

subroutine DGET35 (double precision rmax, integer lmax, integer ninfo, integer knt)

DGET35

Purpose:

!>
!> DGET35 tests DTRSYL, a routine for solving the Sylvester matrix
!> equation
!>
!>    op(A)*X + ISGN*X*op(B) = scale*C,
!>
!> A and B are assumed to be in Schur canonical form, op() represents an
!> optional transpose, and ISGN can be -1 or +1.  Scale is an output
!> less than or equal to 1, chosen to avoid overflow in X.
!>
!> The test code verifies that the following residual is order 1:
!>
!>    norm(op(A)*X + ISGN*X*op(B) - scale*C) /
!>        (EPS*max(norm(A),norm(B))*norm(X))
!> 

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
!>          Number of examples where INFO is nonzero.
!> 

KNT

!>          KNT is INTEGER
!>          Total number of examples tested.
!> 

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 77 of file dget35.f.

Author

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Version 3.12.0 LAPACK