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.

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.

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.