WSJT-X/boost/libs/numeric/ublas/doc/samples/hermitian_matrix.cpp

34 lines
1.1 KiB
C++

//
// Copyright (c) 2000-2002
// Joerg Walter, Mathias Koch
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// The authors gratefully acknowledge the support of
// GeNeSys mbH & Co. KG in producing this work.
//
#include <boost/numeric/ublas/hermitian.hpp>
#include <boost/numeric/ublas/io.hpp>
int main () {
using namespace boost::numeric::ublas;
hermitian_matrix<std::complex<double>, lower> ml (3, 3);
for (unsigned i = 0; i < ml.size1 (); ++ i) {
for (unsigned j = 0; j < i; ++ j)
ml (i, j) = std::complex<double> (3 * i + j, 3 * i + j);
ml (i, i) = std::complex<double> (4 * i, 0);
}
std::cout << ml << std::endl;
hermitian_matrix<std::complex<double>, upper> mu (3, 3);
for (unsigned i = 0; i < mu.size1 (); ++ i) {
mu (i, i) = std::complex<double> (4 * i, 0);
for (unsigned j = i + 1; j < mu.size2 (); ++ j)
mu (i, j) = std::complex<double> (3 * i + j, 3 * i + j);
}
std::cout << mu << std::endl;
}