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rank

PURPOSE ^

Returns TT-ranks of the given tensor in TT-format

SYNOPSIS ^

function [r]=rank(a,varargin)

DESCRIPTION ^

 Returns TT-ranks of the given tensor in TT-format
   [R]=RANK(A) Returns either all ranks of the TT-tensor A

   [R]=RANK(A,IND) Returns the rank with number IND


 TT-Toolbox 2.2, 2009-2012

This is TT Toolbox, written by Ivan Oseledets et al.
Institute of Numerical Mathematics, Moscow, Russia
webpage: http://spring.inm.ras.ru/osel

For all questions, bugs and suggestions please mail
ivan.oseledets@gmail.com
---------------------------

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function [r]=rank(a,varargin)
0002 % Returns TT-ranks of the given tensor in TT-format
0003 %   [R]=RANK(A) Returns either all ranks of the TT-tensor A
0004 %
0005 %   [R]=RANK(A,IND) Returns the rank with number IND
0006 %
0007 %
0008 % TT-Toolbox 2.2, 2009-2012
0009 %
0010 %This is TT Toolbox, written by Ivan Oseledets et al.
0011 %Institute of Numerical Mathematics, Moscow, Russia
0012 %webpage: http://spring.inm.ras.ru/osel
0013 %
0014 %For all questions, bugs and suggestions please mail
0015 %ivan.oseledets@gmail.com
0016 %---------------------------
0017 
0018 if (nargin==1)
0019   r=a.r;
0020 else
0021   i=varargin{1};
0022    r=a.r(i);
0023 end
0024 return
0025 end

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