![]() |
LAPACK
3.5.0
LAPACK: Linear Algebra PACKage
|
Go to the source code of this file.
Functions/Subroutines | |
real function | ctzt01 (M, N, A, AF, LDA, TAU, WORK, LWORK) |
CTZT01 More... | |
real function ctzt01 | ( | integer | M, |
integer | N, | ||
complex, dimension( lda, * ) | A, | ||
complex, dimension( lda, * ) | AF, | ||
integer | LDA, | ||
complex, dimension( * ) | TAU, | ||
complex, dimension( lwork ) | WORK, | ||
integer | LWORK | ||
) |
CTZT01
CTZT01 returns || A - R*Q || / ( M * eps * ||A|| ) for an upper trapezoidal A that was factored with CTZRQF.
[in] | M | M is INTEGER The number of rows of the matrices A and AF. |
[in] | N | N is INTEGER The number of columns of the matrices A and AF. |
[in] | A | A is COMPLEX array, dimension (LDA,N) The original upper trapezoidal M by N matrix A. |
[in] | AF | AF is COMPLEX array, dimension (LDA,N) The output of CTZRQF for input matrix A. The lower triangle is not referenced. |
[in] | LDA | LDA is INTEGER The leading dimension of the arrays A and AF. |
[in] | TAU | TAU is COMPLEX array, dimension (M) Details of the Householder transformations as returned by CTZRQF. |
[out] | WORK | WORK is COMPLEX array, dimension (LWORK) |
[in] | LWORK | LWORK is INTEGER The length of the array WORK. LWORK >= m*n + m. |
Definition at line 98 of file ctzt01.f.