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Mathematical functions and their approximations. (English) Zbl 0318.33001
New York - San Francisco - London: Academic Press Inc., a subsidiary of Harcourt Brace Jovanovich, Publishers. XVII, 568 p. $14.50 (1975).

33-XX Special functions
41A10 Approximation by polynomials
33-01 Introductory exposition (textbooks, tutorial papers, etc.) pertaining to special functions
41A20 Approximation by rational functions
41A60 Asymptotic approximations, asymptotic expansions (steepest descent, etc.)