.TH "TESTING/LIN/dqrt12.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*- .ad l .nh .SH NAME TESTING/LIN/dqrt12.f .SH SYNOPSIS .br .PP .SS "Functions/Subroutines" .in +1c .ti -1c .RI "double precision function \fBdqrt12\fP (m, n, a, lda, s, work, lwork)" .br .RI "\fBDQRT12\fP " .in -1c .SH "Function/Subroutine Documentation" .PP .SS "double precision function dqrt12 (integer m, integer n, double precision, dimension( lda, * ) a, integer lda, double precision, dimension( * ) s, double precision, dimension( lwork ) work, integer lwork)" .PP \fBDQRT12\fP .PP \fBPurpose:\fP .RS 4 .PP .nf !> !> DQRT12 computes the singular values `svlues' of the upper trapezoid !> of A(1:M,1:N) and returns the ratio !> !> || svlues - s ||/(||s||*eps*max(M,N)) !> .fi .PP .RE .PP \fBParameters\fP .RS 4 \fIM\fP .PP .nf !> M is INTEGER !> The number of rows of the matrix A\&. !> .fi .PP .br \fIN\fP .PP .nf !> N is INTEGER !> The number of columns of the matrix A\&. !> .fi .PP .br \fIA\fP .PP .nf !> A is DOUBLE PRECISION array, dimension (LDA,N) !> The M-by-N matrix A\&. Only the upper trapezoid is referenced\&. !> .fi .PP .br \fILDA\fP .PP .nf !> LDA is INTEGER !> The leading dimension of the array A\&. !> .fi .PP .br \fIS\fP .PP .nf !> S is DOUBLE PRECISION array, dimension (min(M,N)) !> The singular values of the matrix A\&. !> .fi .PP .br \fIWORK\fP .PP .nf !> WORK is DOUBLE PRECISION array, dimension (LWORK) !> .fi .PP .br \fILWORK\fP .PP .nf !> LWORK is INTEGER !> The length of the array WORK\&. LWORK >= max(M*N + 4*min(M,N) + !> max(M,N), M*N+2*MIN( M, N )+4*N)\&. !> .fi .PP .RE .PP \fBAuthor\fP .RS 4 Univ\&. of Tennessee .PP Univ\&. of California Berkeley .PP Univ\&. of Colorado Denver .PP NAG Ltd\&. .RE .PP .PP Definition at line \fB88\fP of file \fBdqrt12\&.f\fP\&. .SH "Author" .PP Generated automatically by Doxygen for LAPACK from the source code\&.