cget35.f - Man Page

TESTING/EIG/cget35.f

Synopsis

Functions/Subroutines

subroutine cget35 (rmax, lmax, ninfo, knt, nin)
CGET35

Function/Subroutine Documentation

subroutine cget35 (real rmax, integer lmax, integer ninfo, integer knt, integer nin)

CGET35

Purpose:

 CGET35 tests CTRSYL, 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 REAL
          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.

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 83 of file cget35.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

The man page cget35(3) is an alias of cget35.f(3).

Tue Nov 28 2023 12:08:42 Version 3.12.0 LAPACK