TESTING/EIG/sget36.f(3)

NAME
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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