mirror of
https://github.com/triqs/dft_tools
synced 2024-11-01 03:33:50 +01:00
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
|
|
/*******************************************************************************
|
|
*
|
|
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
|
|
*
|
|
* Copyright (C) 2011 by O. Parcollet
|
|
*
|
|
* TRIQS is free software: you can redistribute it and/or modify it under the
|
|
* terms of the GNU General Public License as published by the Free Software
|
|
* Foundation, either version 3 of the License, or (at your option) any later
|
|
* version.
|
|
*
|
|
* TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* TRIQS. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
******************************************************************************/
|
|
#include "./common.hpp"
|
|
#include <triqs/arrays/functional/map.hpp>
|
|
#include <triqs/arrays/matrix.hpp>
|
|
#include <iostream>
|
|
#include <algorithm>
|
|
|
|
using std::cout; using std::endl;
|
|
using namespace triqs::arrays;
|
|
|
|
template<class T> T mmax(T const & x, T const & y) { return std::max(x,y);}
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
|
|
|
|
triqs::arrays::matrix<double> A(3,3, FORTRAN_LAYOUT),B(3,3, FORTRAN_LAYOUT);
|
|
A() = -2;
|
|
|
|
for (int i =0; i<3; ++i)
|
|
for (int j=0; j<3; ++j)
|
|
{ A(i,j) = i+2*j+1; B(i,j) = i-j;}
|
|
|
|
auto Abs = map( std::function< double (double)> ( static_cast< double (*)(double)> (std::abs)) );
|
|
auto Max = map2( std::function<double(double,double)>(mmax<double>) );
|
|
|
|
auto sqr = map( [](double x){return x*x;});
|
|
|
|
std::cout<< " A " << A<<std::endl<<std::endl;
|
|
std::cout<< " B " << B<<std::endl<<std::endl;
|
|
std::cerr<< " Sqr(A) " << make_matrix(sqr(A))<<std::endl<<std::endl;
|
|
std::cout<<" abs(B+B) = "<<make_matrix(Abs(B+B)) <<std::endl<<std::endl;
|
|
std::cout<<" A+10*B = "<<make_matrix(A+10*B) <<std::endl<<std::endl;
|
|
std::cout<<" Abs(A+10*B) = "<<make_matrix(Abs(A+10*B)) <<std::endl<<std::endl;
|
|
std::cout<<" Max(A,10*B)"<< make_matrix(Max(A,10*B))<<std::endl<<std::endl;
|
|
return 0;
|
|
}
|