New Releases by Mercer Warriner

Zut ! Une interro dans moins d''une heure ! Sabrina n''a pas terminé le roman de Conan Doyle, sur lequel elle va être interrogée. Alors, d''un coup de baguette magique, elle fait apparaître Sherlock Holmes en personne pour qu''il lui raconte la fin de l''histoire. Mais cette nouvelle tricherie est un désastre. Le professeur de biologie aboie en classe, et son chien écrit au tableau ! Comment conjurer le sort ?

Sabrina''s animal communications professor, Dr. Cartwright, brings his dog, Baskerville, to class for a demonstration, Sabrina starts sneezing a sparkling, fizzing sneeze, which causes Dr. Cartwright and Baskerville to switch bodies--and Sabrina has no idea how to switch them back.

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.