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Approximation theory

1:55

What is APPROXIMATION THEORY? What does APPROXIMATION THEORY mean? APPROXIMATION THEORY meaning

2:31

The Best Approximation Theorem

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Approximation Theory and Algorithms for Data Analysis

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Notes Theory of approximation

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Notes Theory of approximation 4th lecture

In mathematics, approximation theory is concerned with how functions can best be approximated with simpler functions, and with quantitatively characterizing the errors introduced thereby. Note that what is meant by best and simpler will depend on the application.
  • Optimal polynomials 

  • Chebyshev approximation 

  • Remez's algorithm 

  • Main journals