TESTING/LIN/zqrt05.f(3) Library Functions Manual TESTING/LIN/zqrt05.f(3)

TESTING/LIN/zqrt05.f


subroutine zqrt05 (m, n, l, nb, result)
ZQRT05

ZQRT05

Purpose:

!>
!> ZQRT05 tests ZTPQRT and ZTPMQRT.
!> 

Parameters

M
!>          M is INTEGER
!>          Number of rows in lower part of the test matrix.
!> 

N

!>          N is INTEGER
!>          Number of columns in test matrix.
!> 

L

!>          L is INTEGER
!>          The number of rows of the upper trapezoidal part the
!>          lower test matrix.  0 <= L <= M.
!> 

NB

!>          NB is INTEGER
!>          Block size of test matrix.  NB <= N.
!> 

RESULT

!>          RESULT is DOUBLE PRECISION array, dimension (6)
!>          Results of each of the six tests below.
!>
!>          RESULT(1) = | A - Q R |
!>          RESULT(2) = | I - Q^H Q |
!>          RESULT(3) = | Q C - Q C |
!>          RESULT(4) = | Q^H C - Q^H C |
!>          RESULT(5) = | C Q - C Q |
!>          RESULT(6) = | C Q^H - C Q^H |
!> 

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 79 of file zqrt05.f.

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