mirror of
https://github.com/triqs/dft_tools
synced 2024-12-26 14:23:38 +01:00
22 lines
860 B
C++
22 lines
860 B
C++
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#include <triqs/det_manip/det_manip.hpp>
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struct fun {
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typedef double result_type;
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typedef double argument_type;
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double operator()(double x, double y) const { return (x - y); }
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};
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int main() {
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fun f;
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int i = 0, j = 1;
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std::vector<double> initial_x{1, 2}, initial_y{3, 4};
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triqs::det_manip::det_manip<fun> D(f, initial_x, initial_y);
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std::cout << std::endl << "D.matrix()=" << D.matrix() << std::endl << std::endl;
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std::cout << "The size of the matrix is " << D.size() << std::endl << std::endl;
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std::cout << "The determinant is " << D.determinant() << std::endl << std::endl;
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std::cout << "The inverse matrix is" << D.inverse_matrix() << std::endl << std::endl;
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std::cout << "The value of the parameters for coefficient (i,j)=(" << i << "," << j << ") is (x,y)=(" << D.get_x(i) << ","
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<< D.get_y(j) << ")" << std::endl << std::endl;
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}
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