Examples
x = [1 2 3 4] cheb(10, x) ans = 1.0000e+00 2.6209e+05 2.2620e+07 4.5747e+08 |  |  |
Calculates the nth-order Chebyshev polynomial at the point x.
cheb(n, x)
Filter order
Point at which the Chebyshev polynomial is calculater.
This is an Octave function. Equation for Chebyshev polynomial is / cos(n acos(x), |x| <= 1 Tn(x) = | \ cosh(n acosh(x), |x| > 1
x can also be a vector. In that case the output will also be a vector of same size as x.
x = [1 2 3 4] cheb(10, x) ans = 1.0000e+00 2.6209e+05 2.2620e+07 4.5747e+08 | | |