Home Search Forums Register Forum Rules Man Pages FAQ Members Search Today's Posts Mark Forums Read

# RedHat 9 (Linux i386) - man page for cgelq2 (redhat section l)

Linux & Unix Commands - Search Man Pages
 Man Page or Keyword Search: man All Sections 1 - General Commands 1m - System Admin 2 - System Calls 3 - Subroutines 4 - Special Files 5 - File Formats 6 - Games 7 - Macros and Conventions 8 - Maintenance Commands 9 - Kernel Interface N - New Commands Select Man Page Set:       Linux 2.6 RedHat 9 (Linux i386) Debian 7.7 SuSE 11.3 CentOS 7.0 SunOS 5.10 OpenSolaris 2009.06 BSD 2.11 FreeBSD 11.0 NetBSD 6.1.5 OSX 10.6.2 OpenDarwin 7.2.1 ULTRIX 4.2 PHP 5.6 Minix 2.0 Plan 9 Unix Version 7 OSF1 5.1 (alpha) POSIX 1003.1 X11R7.4 XFree86 4.7.0 all unix.com man page sets apropos Keyword Search (sections above)

 ```CGELQ2(l) ) CGELQ2(l) NAME CGELQ2 - compute an LQ factorization of a complex m by n matrix A SYNOPSIS SUBROUTINE CGELQ2( M, N, A, LDA, TAU, WORK, INFO ) INTEGER INFO, LDA, M, N COMPLEX A( LDA, * ), TAU( * ), WORK( * ) PURPOSE CGELQ2 computes an LQ factorization of a complex m by n matrix A: A = L * Q. ARGUMENTS M (input) INTEGER The number of rows of the matrix A. M >= 0. N (input) INTEGER The number of columns of the matrix A. N >= 0. A (input/output) COMPLEX array, dimension (LDA,N) On entry, the m by n matrix A. On exit, the elements on and below the diagonal of the array contain the m by min(m,n) lower trapezoidal matrix L (L is lower trian- gular if m <= n); the elements above the diagonal, with the array TAU, represent the unitary matrix Q as a product of elementary reflectors (see Further Details). LDA (input) INTEGER The leading dimension of the array A. LDA >= max(1,M). TAU (output) COMPLEX array, dimension (min(M,N)) The scalar factors of the elementary reflectors (see Further Details). WORK (workspace) COMPLEX array, dimension (M) INFO (output) INTEGER = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value FURTHER DETAILS The matrix Q is represented as a product of elementary reflectors Q = H(k)' . . . H(2)' H(1)', where k = min(m,n). Each H(i) has the form H(i) = I - tau * v * v' where tau is a complex scalar, and v is a complex vector with v(1:i-1) = 0 and v(i) = 1; conjg(v(i+1:n)) is stored on exit in A(i,i+1:n), and tau in TAU(i). LAPACK version 3.0 15 June 2000 CGELQ2(l)```
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums

All times are GMT -4. The time now is 05:25 PM.