mirror of
https://github.com/triqs/dft_tools
synced 2024-12-26 14:23:38 +01:00
edd1ff4529
A first general restructuration of the doc according to the pattern [tour|tutorial|reference]. In the reference part, objects are documented per topic. In each topic, [definition|c++|python|hdf5] (not yet implemented)
19 lines
526 B
C++
19 lines
526 B
C++
#include <triqs/arrays.hpp>
|
|
using namespace triqs;
|
|
int main() {
|
|
// declare and init a matrix
|
|
clef::placeholder<0> i_;
|
|
clef::placeholder<1> j_;
|
|
arrays::matrix<int> A(2, 2);
|
|
A(i_, j_) << i_ + j_;
|
|
|
|
// the mapped function
|
|
auto F = arrays::map([](int i) { return i * 2.5; });
|
|
|
|
std::cout << "A = " << A << std::endl;
|
|
std::cout << "F(A) = " << F(A) << std::endl; // oops no computation done
|
|
std::cout << "F(A) = " << make_matrix(F(A)) << std::endl;
|
|
std::cout << "3*F(2*A) = " << make_matrix(3 * F(2 * A)) << std::endl;
|
|
}
|
|
|