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18 lines
570 B
C++
18 lines
570 B
C++
#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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triangular_matrix<double, lower> ml (3, 3);
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for (unsigned i = 0; i < ml.size1 (); ++ i)
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for (unsigned j = 0; j <= i; ++ j)
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ml (i, j) = 3 * i + j;
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std::cout << ml << std::endl;
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triangular_matrix<double, upper> mu (3, 3);
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for (unsigned i = 0; i < mu.size1 (); ++ i)
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for (unsigned j = i; j < mu.size2 (); ++ j)
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mu (i, j) = 3 * i + j;
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std::cout << mu << std::endl;
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}
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