TESTING/LIN/srzt01.f(3) | Library Functions Manual | TESTING/LIN/srzt01.f(3) |
NAME
TESTING/LIN/srzt01.f
SYNOPSIS
Functions/Subroutines
real function srzt01 (m, n, a, af, lda, tau, work, lwork)
SRZT01
Function/Subroutine Documentation
real function srzt01 (integer m, integer n, real, dimension( lda, * ) a, real, dimension( lda, * ) af, integer lda, real, dimension( * ) tau, real, dimension( lwork ) work, integer lwork)
SRZT01
Purpose:
SRZT01 returns || A - R*Q || / ( M * eps * ||A|| ) for an upper trapezoidal A that was factored with STZRZF.
Parameters
M
M is INTEGER The number of rows of the matrices A and AF.
N
N is INTEGER The number of columns of the matrices A and AF.
A
A is REAL array, dimension (LDA,N) The original upper trapezoidal M by N matrix A.
AF
AF is REAL array, dimension (LDA,N) The output of STZRZF for input matrix A. The lower triangle is not referenced.
LDA
LDA is INTEGER The leading dimension of the arrays A and AF.
TAU
TAU is REAL array, dimension (M) Details of the Householder transformations as returned by STZRZF.
WORK
WORK is REAL array, dimension (LWORK)
LWORK
LWORK is INTEGER The length of the array WORK. LWORK >= m*n + m*nb.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Definition at line 96 of file srzt01.f.
Author
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