numpy.polynomial.polynomial.Polynomial.identity#
method
- classmethod polynomial.polynomial.Polynomial.identity(domain=None, window=None)[source]#
Identity function.
If
p
is the returned series, thenp(x) == x
for all values of x.- Parameters
- domain{None, array_like}, optional
If given, the array must be of the form
[beg, end]
, wherebeg
andend
are the endpoints of the domain. If None is given then the class domain is used. The default is None.- window{None, array_like}, optional
If given, the resulting array must be if the form
[beg, end]
, wherebeg
andend
are the endpoints of the window. If None is given then the class window is used. The default is None.
- Returns
- new_seriesseries
Series of representing the identity.