Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   29550 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

zlanht.f(3)			    LAPACK			   zlanht.f(3)

NAME
       zlanht.f -

SYNOPSIS
   Functions/Subroutines
       DOUBLE PRECISION function zlanht (NORM, N, D, E)
	   ZLANHT returns the value of the 1-norm, or the Frobenius norm, or
	   the infinity norm, or the element of largest absolute value of a
	   complex Hermitian tridiagonal matrix.

Function/Subroutine Documentation
   DOUBLE PRECISION function zlanht (characterNORM, integerN, double
       precision, dimension( * )D, complex*16, dimension( * )E)
       ZLANHT returns the value of the 1-norm, or the Frobenius norm, or the
       infinity norm, or the element of largest absolute value of a complex
       Hermitian tridiagonal matrix.

       Purpose:

	    ZLANHT  returns the value of the one norm,	or the Frobenius norm, or
	    the	 infinity norm,	 or the	 element of  largest absolute value  of a
	    complex Hermitian tridiagonal matrix A.

       Returns:
	   ZLANHT

	       ZLANHT = ( max(abs(A(i,j))), NORM = 'M' or 'm'
			(
			( norm1(A),	    NORM = '1', 'O' or 'o'
			(
			( normI(A),	    NORM = 'I' or 'i'
			(
			( normF(A),	    NORM = 'F', 'f', 'E' or 'e'

	    where  norm1  denotes the  one norm of a matrix (maximum column sum),
	    normI  denotes the	infinity norm  of a matrix  (maximum row sum) and
	    normF  denotes the	Frobenius norm of a matrix (square root of sum of
	    squares).  Note that  max(abs(A(i,j)))  is not a consistent matrix norm.

       Parameters:
	   NORM

		     NORM is CHARACTER*1
		     Specifies the value to be returned in ZLANHT as described
		     above.

	   N

		     N is INTEGER
		     The order of the matrix A.	 N >= 0.  When N = 0, ZLANHT is
		     set to zero.

	   D

		     D is DOUBLE PRECISION array, dimension (N)
		     The diagonal elements of A.

	   E

		     E is COMPLEX*16 array, dimension (N-1)
		     The (n-1) sub-diagonal or super-diagonal elements of A.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   September 2012

       Definition at line 102 of file zlanht.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.2			Tue Sep 25 2012			   zlanht.f(3)

Vote for polarhome