1// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab 2// Copyright (C) INRIA 3// 4// Copyright (C) 2012 - 2016 - Scilab Enterprises 5// 6// This file is hereby licensed under the terms of the GNU GPL v2.0, 7// pursuant to article 5.3.4 of the CeCILL v.2.1. 8// This file was originally licensed under the terms of the CeCILL v2.1, 9// and continues to be available under such terms. 10// For more information, see the COPYING file which you should have received 11// along with this program. 12 13function d=%c_triu(a,k) 14 // g_triu - implement triu function for sparse matrix, rationnal matrix ,.. 15 [lhs,rhs]=argn(0) 16 if rhs==1 then k=0,end 17 18 [m,n]=size(a) 19 if k<=0 then 20 mn=min(m,n-k) 21 else 22 mn=min(m+k,n) 23 end 24 a=matrix(a,m*n,1) 25 i=(1:mn)+((1:mn)+(k-1))*m 26 d=emptystr(m*n,1) 27 d(i)=a(i) 28 d=matrix(d,m,n) 29endfunction 30