31 lines
954 B
C++
31 lines
954 B
C++
//
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// Copyright (c) 2000-2002
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// Joerg Walter, Mathias Koch
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// The authors gratefully acknowledge the support of
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// GeNeSys mbH & Co. KG in producing this work.
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//
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#include <boost/numeric/ublas/triangular.hpp>
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#include <boost/numeric/ublas/io.hpp>
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int main () {
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using namespace boost::numeric::ublas;
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matrix<double> m (3, 3);
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triangular_adaptor<matrix<double>, lower> tal (m);
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for (unsigned i = 0; i < tal.size1 (); ++ i)
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for (unsigned j = 0; j <= i; ++ j)
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tal (i, j) = 3 * i + j;
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std::cout << tal << std::endl;
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triangular_adaptor<matrix<double>, upper> tau (m);
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for (unsigned i = 0; i < tau.size1 (); ++ i)
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for (unsigned j = i; j < tau.size2 (); ++ j)
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tau (i, j) = 3 * i + j;
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std::cout << tau << std::endl;
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}
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