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.