# dget34.f - Man Page

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

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

The man page dget34(3) is an alias of dget34.f(3).

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