sget40()

subroutine sget40	(	real	RMAX,
		integer	LMAX,
		integer, dimension( 2 )	NINFO,
		integer	KNT,
		integer	NIN
	)

SGET40

Purpose:

 SGET40 tests STGEXC, a routine for swapping adjacent blocks (either
 1 by 1 or 2 by 2) on the diagonal of a pencil in real generalized Schur form.
 Thus, STGEXC computes an orthogonal matrices Q and Z such that

     Q' * ( [ A B ], [ D E ] ) * Z  = ( [ C1 B1 ], [ F1 E1 ] )
          ( [ 0 C ]  [   F ] )        ( [ 0  A1 ]  [    D1]  )

 where (C1,F1) is similar to (C,F) and (A1,D1) is similar to (A,D).
 Both (A,D) and (C,F) are assumed to be in standard form
 and (A1,D1) and (C1,F1) are returned with the
 same properties.

Parameters

[out]	RMAX	RMAX is REAL Value of the largest test ratio.
[out]	LMAX	LMAX is INTEGER Example number where largest test ratio achieved.
[out]	NINFO	NINFO is INTEGER array, dimension (2) NINFO( 1 ) = STGEXC without accumulation returned INFO nonzero NINFO( 2 ) = STGEXC with accumulation returned INFO nonzero
[out]	KNT	KNT is INTEGER Total number of examples tested.
[in]	NIN	NIN is INTEGER Input logical unit number.

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.