clansp man page on Cygwin

Man page or keyword search:  
man Server   22533 pages
apropos Keyword Search (all sections)
Output format
Cygwin logo
[printable version]

clansp.f(3)			    LAPACK			   clansp.f(3)

NAME
       clansp.f -

SYNOPSIS
   Functions/Subroutines
       REAL function clansp (NORM, UPLO, N, AP, WORK)
	   CLANSP returns the value of the 1-norm, or the Frobenius norm, or
	   the infinity norm, or the element of largest absolute value of a
	   symmetric matrix supplied in packed form.

Function/Subroutine Documentation
   REAL function clansp (characterNORM, characterUPLO, integerN, complex,
       dimension( * )AP, real, dimension( * )WORK)
       CLANSP returns the value of the 1-norm, or the Frobenius norm, or the
       infinity norm, or the element of largest absolute value of a symmetric
       matrix supplied in packed form.

       Purpose:

	    CLANSP  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 symmetric matrix A,	 supplied in packed form.

       Returns:
	   CLANSP

	       CLANSP = ( 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 CLANSP as described
		     above.

	   UPLO

		     UPLO is CHARACTER*1
		     Specifies whether the upper or lower triangular part of the
		     symmetric matrix A is supplied.
		     = 'U':  Upper triangular part of A is supplied
		     = 'L':  Lower triangular part of A is supplied

	   N

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

	   AP

		     AP is COMPLEX array, dimension (N*(N+1)/2)
		     The upper or lower triangle of the symmetric matrix A, packed
		     columnwise in a linear array.  The j-th column of A is stored
		     in the array AP as follows:
		     if UPLO = 'U', AP(i + (j-1)*j/2) = A(i,j) for 1<=i<=j;
		     if UPLO = 'L', AP(i + (j-1)*(2n-j)/2) = A(i,j) for j<=i<=n.

	   WORK

		     WORK is REAL array, dimension (MAX(1,LWORK)),
		     where LWORK >= N when NORM = 'I' or '1' or 'O'; otherwise,
		     WORK is not referenced.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   September 2012

       Definition at line 116 of file clansp.f.

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

Version 3.4.2			Sat Nov 16 2013			   clansp.f(3)
[top]

List of man pages available for Cygwin

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net