mirror of
https://github.com/triqs/dft_tools
synced 2024-12-26 14:23:38 +01:00
58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
/*******************************************************************************
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*
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* TRIQS: a Toolbox for Research in Interacting Quantum Systems
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*
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* Copyright (C) 2011 by O. Parcollet
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*
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* TRIQS is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* TRIQS. If not, see <http://www.gnu.org/licenses/>.
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*
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******************************************************************************/
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#include "./common.hpp"
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#include "./src/matrix.hpp"
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#include "./src/functional/fold.hpp"
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#include "./src/functional/map.hpp"
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#include "./src/algorithms.hpp"
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#include <iostream>
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using namespace triqs::arrays;
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auto Abs = map( std::function< double (double)> ( static_cast< double (*)(double)> (std::abs)) );
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int main(int argc, char **argv) {
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triqs::arrays::matrix<double > A(3,3,FORTRAN_LAYOUT),B(3,3,FORTRAN_LAYOUT),C(FORTRAN_LAYOUT);
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triqs::arrays::matrix<double > Ac(3,3);
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for (int i =0; i<3; ++i)
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for (int j=0; j<3; ++j)
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{ A(i,j) = i+2*j+1; B(i,j) = i-3*j;}
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C = A+ B ;
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std::cout<< " A " << A<<std::endl;
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std::cout<< " B " << B<<std::endl;
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std::cout<< " A+B " << C<<std::endl;
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std::cout<< " max A : "<<triqs::arrays::max_element(A)<<std::endl;
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std::cout<< " max B : "<<triqs::arrays::max_element(B)<<std::endl;
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std::cout<< " max abs(B) : "<<triqs::arrays::max_element(Abs(B))<<std::endl;
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std::cout<< " max A+B : "<<triqs::arrays::max_element(A+B)<<std::endl;
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std::cout <<" sum(A) "<< sum(A)<<std::endl;
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std::cout <<" prod(A) "<< prod(A)<<std::endl;
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return 0;
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}
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