eigen/doc/snippets/MatrixBase_isUnitary.cpp

Matrix3d m = Matrix3d::identity();
m(0,2) = 1e-4;
cout << "Here's the matrix m:" << endl << m << endl;
cout << "m.isUnitary() returns: " << m.isUnitary() << endl;
cout << "m.isUnitary(1e-3) returns: " << m.isUnitary(1e-3) << endl;
* vectorize dot product, copying code from sum. * make the conj functor vectorizable: it is just identity in real case, and complex doesn't use the vectorized path anyway. * fix bug in Block: a 3x1 block in a 4x4 matrix (all fixed-size) should not be vectorizable, since in fixed-size we are assuming the size to be a multiple of packet size. (Or would you prefer Vector3d to be flagged "packetaccess" even though no packet access is possible on vectors of that type?) * rename: isOrtho for vectors ---> isOrthogonal isOrtho for matrices ---> isUnitary * add normalize() * reimplement normalized with quotient1 functor 2008-06-24 23:13:00 +08:00			`Matrix3d m = Matrix3d::identity();`
			`m(0,2) = 1e-4;`
			`cout << "Here's the matrix m:" << endl << m << endl;`
			`cout << "m.isUnitary() returns: " << m.isUnitary() << endl;`
			`cout << "m.isUnitary(1e-3) returns: " << m.isUnitary(1e-3) << endl;`