This monograph deals with the development of algorithms or the derivation of approximations from linear projections.

Self-contained presentation of multivariate approximation from classical linear approximation to contemporary nonlinear approximation.

Multivariate polynomials are a main tool in approximation. The book begins with an introduction to the general theory by presenting the most important facts on

Topics in Multivariate Approximation contains the proceedings of an international workshop on multivariate approximation held at the University of Chile in Sant

The Third International Symposium on Hultivariate Approximation Theory was held at the Oberwolfach!1athematical Research Insti tute, Black Forest, February 8-12