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Chebfun Examples: Approximation of functions

Absolute value approximations by rationals (html, PDF, M-file)
Absolute value approximations by rationals 2 (html, PDF, M-file)
Adding Together Bump Functions (html, PDF, M-file)
Approximations and Oscillation of Error (html, PDF, M-file)
B-splines and convolution (html, PDF, M-file)
Bernstein polynomials (html, PDF, M-file)
Best $L^2$ approximation in Chebfun (html, PDF, M-file)
Best approximation with the Remez command (html, PDF, M-file)
Chebfun2 objects on non-rectangular domains (html, PDF, M-file)
Chebyshev coefficients (html, PDF, M-file)
Chebyshev interpolation of oscillatory entire functions (html, PDF, M-file)
Chebyshev polynomials as plotted by Higham and Higham (html, PDF, M-file)
Convergence rates for interpolating functions (html, PDF, M-file)
Digital Filters via CF Approximation (html, PDF, M-file)
Exact Chebyshev expansion coefficients of a function (html, PDF, M-file)
A fast Chebyshev-Legendre transform (html, PDF, M-file)
The FFT in Chebfun (html, PDF, M-file)
The gamma function and its poles (html, PDF, M-file)
A greedy algorithm for choosing interpolation points (html, PDF, M-file)
Halphen's constant for approximation of exp(x) (html, PDF, M-file)
Illustrating the mathematics of signal processing in Chebfun (html, PDF, M-file)
Interactive Interpolation (html, PDF, M-file)
Lebesgue functions and Lebesgue constants (html, PDF, M-file)
Local complexity of a function (html, PDF, M-file)
Orthogonal polynomials via the Gram-Schmidt process (html, PDF, M-file)
Orthogonal polynomials via the Lanczos process (html, PDF, M-file)
A pathological function of Weierstrass (html, PDF, M-file)
Polynomial basis for Hermite interpolation (html, PDF, M-file)
Pretty functions approximated by Chebfun2 (html, PDF, M-file)
Rational approximation to the exponential in a complex region (html, PDF, M-file)
Rational interpolation, robust and non-robust (html, PDF, M-file)
Resolution of wiggly functions (html, PDF, M-file)
Restricted-denominator approximations (html, PDF, M-file)
Splines (html, PDF, M-file)
Summing a divergent Series (html, PDF, M-file)
A wiggly function and its best approximations (html, PDF, M-file)

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