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APPROXIMATIONS FOR DIGITAL COMPUTERS research study by the RAND Corporation. Cecil Hastings, Jeanne T. Hayward, James P. Wong Jr.

APPROXIMATIONS FOR DIGITAL COMPUTERS research study by the RAND Corporation.

Princeton University Press 1955, 2nd printing 1957; 201 pages, diagrams.
Condition: Very Good hardcover overall; some wear to boards and spine ends; binding is sound and secure. No dustjacket; internal pages clean, sound.
Price: $20.00
Item no. CG1007
Item Description
This is the first publication in book form of the author's approximations for digital computers, formerly available only in loose sheets; Part I of the book introduces the collection of useful and illustrative approximations, each of which is presented with a carefully drawn error curve in Part II... undoubtedly _the_ book in the growing field of special function approximations. It is both a necessary reference book for all digital computer centers, and the best book for an introduction to this interesting & difficult field' (from the dj flap, quoted from the Journal of the Association for Computing Machinery.

CONTENTS -- Concerning Best Fit; Linear Weights; An Iterative Procedure; Solution of Equations; Chebyshev Polynomials; Concerning Weights Function with a Peak; Rates of Convergence; Choice of Form; A Scoring-Camera Problem;

PART II - the equations, error curves, etc. - over 70; References.

'This monograph deals with the subject of best approximation in the sense of Chebyshev as applies to the problem of making univariate functional data available to the high-speed digital computing machine' (from the author's Preface'.