mirror of
https://gitlab.com/libeigen/eigen.git
synced 2024-12-21 07:19:46 +08:00
17 lines
434 B
C++
17 lines
434 B
C++
|
#include <unsupported/Eigen/MatrixFunctions>
|
||
|
#include <iostream>
|
||
|
|
||
|
using namespace Eigen;
|
||
|
|
||
|
int main()
|
||
|
{
|
||
|
const double pi = std::acos(-1.0);
|
||
|
|
||
|
MatrixXd A(2,2);
|
||
|
A << cos(pi/3), -sin(pi/3),
|
||
|
sin(pi/3), cos(pi/3);
|
||
|
std::cout << "The matrix A is:\n" << A << "\n\n";
|
||
|
std::cout << "The matrix square root of A is:\n" << A.sqrt() << "\n\n";
|
||
|
std::cout << "The square of the last matrix is:\n" << A.sqrt() * A.sqrt() << "\n";
|
||
|
}
|