(n, x) ¶Returns the value of the nth-order Chebyshev polynomial calculated at the point x. The Chebyshev polynomials are defined by the equations:
/ cos(n acos(x), |x|<= 1
Tn(x) = |
\ cosh(n acosh(x), |x|> 1
If x is a vector, the output is a vector of the same size, where each element is calculated as y(i) = Tn(x(i)).
Package: signal