Kövari and Pommerenke [19], and Elliott [8], have shown that the truncated Faber series gives a polynomial approximation which (for practical values of the degree of the polynomial) is very close to ...
David Kincaid and Ward Cheney, Numerical Analysis: Mathematics of Scientifc Computing, 3rd edition, 2002. ISBN: 0-534-38905-8. Brooks/Cole. CSCI 3656 and three semesters of calculus, or consent of ...