ultimatepp/uppsrc/plugin/Eigen/unsupported/doc/examples/MatrixSquareRoot.cpp
koldo b157ebb02c Eigen: Updated to 3.2.5 version
git-svn-id: svn://ultimatepp.org/upp/trunk@8966 f0d560ea-af0d-0410-9eb7-867de7ffcac7
2015-09-26 14:04:10 +00:00

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#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";
}