Mathematics of Computing -- Numerical Analysis.

This is an easily accessible book on the approximation of functions--simple and without unnecessary details, but complete enough to include the main results of

A thorough, self-contained and easily accessible treatment of the theory on the polynomial best approximation of functions with respect to maximum norms. The to

This 1987 book examines the approximation of real functions by real rational functions. These are a more convenient tool than polynomials, and interest in them

In Fourier Analysis and Approximation of Functions basics of classical Fourier Analysis are given as well as those of approximation by polynomials, splines and