TESTING/LIN/drzt01.f(3) Library Functions Manual TESTING/LIN/drzt01.f(3) NAME TESTING/LIN/drzt01.f SYNOPSIS Functions/Subroutines double precision function drzt01 (m, n, a, af, lda, tau, work, lwork) DRZT01 Function/Subroutine Documentation double precision function drzt01 (integer m, integer n, double precision, dimension( lda, * ) a, double precision, dimension( lda, * ) af, integer lda, double precision, dimension( * ) tau, double precision, dimension( lwork ) work, integer lwork) DRZT01 Purpose: DRZT01 returns || A - R*Q || / ( M * eps * ||A|| ) for an upper trapezoidal A that was factored with DTZRZF. 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 DOUBLE PRECISION array, dimension (LDA,N) The original upper trapezoidal M by N matrix A. AF AF is DOUBLE PRECISION array, dimension (LDA,N) The output of DTZRZF 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 DOUBLE PRECISION array, dimension (M) Details of the Householder transformations as returned by DTZRZF. WORK WORK is DOUBLE PRECISION 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 drzt01.f. Author Generated automatically by Doxygen for LAPACK from the source code. LAPACK Version 3.12.0 TESTING/LIN/drzt01.f(3)