Appendix

This notation really implies that Q 0 is the barycentre of the Q h with masses a h ; i.e. the point whose barycentric coordinates, with reference to the basis-points Q h , are a h .In Cartesian coordinates, this implies that, for any x, the values x (i) which it assumes at Q i (i = 0, 1, 2,…, n) sat... View More