doc/snippets/MatrixBase_cwiseInverse.cpp

*bf2c3715SXin LiMatrixXd m(2,3);
*bf2c3715SXin Lim << 2, 0.5, 1,
*bf2c3715SXin Li     3, 0.25, 1;
*bf2c3715SXin Licout << m.cwiseInverse() << endl;