12b8756b6f1de65d3f8bffab45be6c44ceb7411fcMiao WangMatrixXf A = MatrixXf::Random(3, 2);
22b8756b6f1de65d3f8bffab45be6c44ceb7411fcMiao WangVectorXf b = VectorXf::Random(3);
32b8756b6f1de65d3f8bffab45be6c44ceb7411fcMiao Wangcout << "The solution using the QR decomposition is:\n"
42b8756b6f1de65d3f8bffab45be6c44ceb7411fcMiao Wang     << A.colPivHouseholderQr().solve(b) << endl;
5