Download or read book Witches on Ice written by Holly Warriner and published by Simon & Schuster/Paula Wiseman Books. This book was released on 1999 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excellent graduate-level monograph investigates relationship between various structural properties of real functions and the character of possible approximations to them by polynomials and other functions of simple construction. Based on classical approximation theorem of Weierstrass, P. L. Chebyshev’s concept of the best approximation, converse theorem of S. N. Bernstein on existence of a function with a given sequence of best approximations. Each chapter includes problems and theorems supplementing main text. 1963 edition. Bibliography.