TESTING/EIG/dget34.f(3)

NAME
TESTING/EIG/dget34.f

SYNOPSIS

  Functions/Subroutines
subroutine dget34 (rmax, lmax, ninfo, knt)
DGET34

Function/Subroutine Documentation

  subroutine dget34 (double precision rmax, integer lmax, integer, dimension( 2 ) ninfo, integer knt)

DGET34

Purpose:

     DGET34 tests DLAEXC, a routine for swapping adjacent blocks (either
     1 by 1 or 2 by 2) on the diagonal of a matrix in real Schur form.
     Thus, DLAEXC computes an orthogonal matrix Q such that
         Q' * [ A B ] * Q  = [ C1 B1 ]
              [ 0 C ]        [ 0  A1 ]
     where C1 is similar to C and A1 is similar to A.  Both A and C are
     assumed to be in standard form (equal diagonal entries and
     offdiagonal with differing signs) and A1 and C1 are returned with the
     same properties.
     The test code verifies these last assertions, as well as that
     the residual in the above equation is small.

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 array, dimension (2)
              NINFO(J) is the number of examples where INFO=J occurred.

    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 81 of file dget34.f.

Author

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