When doing this for the next two elements down should "wrap around" the matrix so that after the z component comes the x component. For clarity, when performing this operation for , the next two components should be z and x (in that order). While for the next two components should be taken as x and y.
when doing this for the next two elements down should "wrap around" the matrix so that after the z component comes the x component for clarity when performing this operation for  the next two components should be z and x (in that order) while for the next two components should be taken as x and y