Discrete Chebyshev polynomials - Wikipedia
en.wikipedia.org › wiki › Discrete_Chebyshev_polynomialsThe discrete Chebyshev polynomial. t n N ( x ) {\displaystyle t_ {n}^ {N} (x)} is a polynomial of degree n in x , for. n = 0 , 1 , 2 , … , N − 1 {\displaystyle n=0,1,2,\ldots ,N-1} , constructed such that two polynomials of unequal degree are orthogonal with respect to the weight function. w ( x ) = ∑ r = 0 N − 1 δ ( x − r ...
Chebyshev filter - Wikipedia
https://en.wikipedia.org/wiki/Chebyshev_filterType I Chebyshev filters are the most common types of Chebyshev filters. The gain (or amplitude) response, , as a function of angular frequency of the nth-order low-pass filter is equal to the absolute value of the transfer function evaluated at : where is the ripple factor, is the cutoff frequency and is a Chebyshev polynomialo…
Discrete Chebyshev polynomials - Wikipedia
https://en.wikipedia.org/wiki/Discrete_Chebyshev_polynomialsIn mathematics, discrete Chebyshev polynomials, or Gram polynomials, are a type of discrete orthogonal polynomials used in approximation theory, introduced by Pafnuty Chebyshev () and rediscovered by Gram (). Elementary Definition. The discrete Chebyshev polynomial () is a polynomial of degree n in x, for =,,, …,, constructed such that two polynomials of unequal …