Plot
ChebyshevU Polynomials
Definition
The ChebyshevU polynomials are defined as
\[
\begin{align}
U_n(x) &= \sum_{k=0}^{[n/2]} \frac{(-1)^k\,(n-k)!}{k!\,(n-2k)!}\,(2x)^{n-2k}\\
&= (2x)^n {}_2F_1 \left(\left. {-n/2, -n/2+\frac{1}{2} \atop -n} \; \right| \frac{1}{x^2} \right)
\end{align}
\]
