TY - JOUR T1 - The best uniform polynomial approximation of two classes of rational functions TT - JF - IJMSI JO - IJMSI VL - 7 IS - 2 UR - http://ijmsi.ir/article-1-357-en.html Y1 - 2012 SP - 93 EP - 102 KW - Best polynomial approximation KW - Alternating set KW - Shifted Chebyshev polynomials KW - Uniform norm. N2 - In this paper we obtain the explicit form of the best uniform polynomial approximations out of Pn of two classes of rational functions using properties of Chebyshev polynomials. In this way we present some new theorems and lemmas. Some examples will be given to support the results. M3 10.7508/ijmsi.2012.02.009 ER -