1 #include <Eigen/Dense> 2 #include <iostream> 3 4 using namespace Eigen; 5 using namespace std; 6 main()7int main() 8 { 9 ArrayXf a = ArrayXf::Random(5); 10 a *= 2; 11 cout << "a =" << endl 12 << a << endl; 13 cout << "a.abs() =" << endl 14 << a.abs() << endl; 15 cout << "a.abs().sqrt() =" << endl 16 << a.abs().sqrt() << endl; 17 cout << "a.min(a.abs().sqrt()) =" << endl 18 << a.min(a.abs().sqrt()) << endl; 19 } 20