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  • Textbook
  • © 2012

Mathematics of Approximation

Authors:

  • Prerequisites of only calculus and linear algebra
  • Self-contained and rigorous treatment of the mathematics of approximation
  • Includes new results,in particular those on local spline interpolation, and its connection to quadrature
  • A new method of proof of the Euler-Maclaurin formula is presented
  • The topic of quadrature formulas and their error analysis is given an extensive treatment
  • The Weierstrass theorem is rigorously proved for both algebraic and trigonometric polynomials
  • Both Fourier series and the Gram-Schmidt procedure are developed from best approximation
  • Includes supplementary material: sn.pub/extras

Part of the book series: Mathematics Textbooks for Science and Engineering (MTSE, volume 1)

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Table of contents (10 chapters)

  1. Front Matter

    Pages i-xxi
  2. Polynomial Interpolation Formulas

    • Johan de Villiers
    Pages 1-24
  3. Error Analysis for Polynomial Interpolation

    • Johan de Villiers
    Pages 25-35
  4. Polynomial Uniform Convergence

    • Johan de Villiers
    Pages 37-70
  5. Best Approximation

    • Johan de Villiers
    Pages 71-83
  6. Approximation Operators

    • Johan de Villiers
    Pages 85-98
  7. Best Uniform Polynomial Approximation

    • Johan de Villiers
    Pages 99-125
  8. Orthogonality

    • Johan de Villiers
    Pages 127-165
  9. Interpolatory Quadrature

    • Johan de Villiers
    Pages 167-231
  10. Approximation of Periodic Functions

    • Johan de Villiers
    Pages 233-287
  11. Spline Approximation

    • Johan de Villiers
    Pages 289-399
  12. Back Matter

    Pages 401-406

About this book

The approximation of a continuous function by either an algebraic polynomial, a trigonometric polynomial, or a spline, is an important issue in application areas like computer-aided geometric design and signal analysis. This book is an introduction to the mathematical analysis of such approximation, and, with the prerequisites of only calculus and linear algebra, the material is targeted at senior undergraduate level, with a treatment that is both rigorous and self-contained. The topics include polynomial interpolation; Bernstein polynomials and the Weierstrass theorem; best approximations in the general setting of normed linear spaces and inner product spaces; best uniform polynomial approximation; orthogonal polynomials; Newton-Cotes , Gauss and Clenshaw-Curtis quadrature; the Euler-Maclaurin formula ; approximation of periodic functions; the uniform convergence of Fourier series; spline approximation,with an extensive treatment of local spline interpolation,and its application in quadrature. Exercises are provided at the end of each chapter

Reviews

From the reviews:

“The current book presents a compilation of lecture notes delivered by Professor Johan de Villiers at Stellen Bosch University, South Africa. This hardbound treatise titled Mathematics of approximation is a reader-friendly volume spanning over 425 pages. … The content is self-contained and can be used for both classroom teaching and self-study. … The theory is illustrated by a number of solved examples. This is one of the many graces of the book.” (Sarjoo Prasad Yadav, Mathematical Reviews, February, 2013)

Authors and Affiliations

  • , Department of Mathematical Sciences, Stellenbosch University, Matieland, South Africa

    Johan Villiers

Bibliographic Information

Societies and partnerships

Buy it now

Buying options

eBook USD 74.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 99.00
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book USD 99.00
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Other ways to access