carta
dtsqr01(3)

dtsqr013

Part of dtsqr01.f(3).

Usage

Functions/Subroutines

DTSQR01

Function/Subroutine Documentation

subroutine dtsqr01 (character tssw, integer m, integer n, integer mb, integer nb, double precision, dimension(6) result)

DTSQR01

Purpose:

!>
!> DTSQR01 tests DGEQR , DGELQ, DGEMLQ and DGEMQR.
!> 

Parameters

TSSW

!>          TSSW is CHARACTER
!>          'TS' for testing tall skinny QR
!>               and anything else for testing short wide LQ
!> 

M

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

N

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

MB

!>          MB is INTEGER
!>          Number of row in row block in test matrix.
!> 

NB

!>          NB is INTEGER
!>          Number of columns in column block test matrix.
!> 

RESULT

!>          RESULT is DOUBLE PRECISION array, dimension (6)
!>          Results of each of the six tests below.
!>
!>          RESULT(1) = | A - Q R | or | A - L Q |
!>          RESULT(2) = | I - Q^H Q | or | I - Q Q^H |
!>          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 83 of file dtsqr01.f.

Author

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