numpy.polynomial.chebyshev.Chebyshev.identity

static Chebyshev.identity(domain=[-1, 1], window=[-1, 1])

Identity function.

If p is the returned Chebyshev object, then p(x) == x for all values of x.

Parameters :

domain : array_like

The resulting array must be of the form [beg, end], where beg and end are the endpoints of the domain.

window : array_like

The resulting array must be if the form [beg, end], where beg and end are the endpoints of the window.

Returns :

identity : Chebyshev instance