numpy.polynomial.polynomial.Polynomial.identity

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

Identity function.

If p is the returned Polynomial 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 : Polynomial instance