c++计算eigen随笔(3)-求逆

求逆

#include <iostream>
#include <Eigen/Dense>
using namespace Eigen;
using namespace std;
int main()
{
Matrix3d m = Matrix3d::Random();
cout << "Here is the matrix m:" << endl << m << endl;
Matrix3d v= m.inverse();
cout << "Its inverse is:v=" << endl << v << endl;
cout<<"m*v="<<m*v<<endl;
}

Here is the matrix m:
 -0.999984 -0.0826997  -0.905911
 -0.736924  0.0655345   0.357729
  0.511211  -0.562082   0.358593
Its inverse is:v=
 -0.370316  -0.888554 -0.0491136
 -0.737309  -0.172358   -1.69072
 -0.627782   0.996559   0.208558
m*v=           1 -1.11022e-16            0
           0            1            0
-5.55112e-17  5.55112e-17            1
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