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 0.3577290.511211 -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 00 1 0 -5.55112e-17 5.55112e-17 1 Hit any key to continue...

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