THE CHEBYSHEV APPROXIMATION METHOD*
www.ams.org › qam › 1953/11/02shev method is, for physicists and engineers, one of the most interesting and important. Originally introduced by P. L. Chebyshev in a mechanical linkage problem, (26) this procedure came into particular importance in electrical engineering with the publication of a new method of filter design by W. Cauer. (5)
Chebyshev polynomials - Wikipedia
https://en.wikipedia.org/wiki/Chebyshev_polynomialsThe Chebyshev polynomials are two sequences of polynomials related to the cosine and sine functions, notated as and . They can be defined several equivalent ways; in this article the polynomials are defined by starting with trigonometric functions: The Chebyshev polynomials of the first kind are given by Similarly, define the Chebyshev polynomials of the second kind as