method
polynomial.legendre.Legendre.
identity
Identity function.
If p is the returned series, then p(x) == x for all values of x.
p
p(x) == x
If given, the array must be of the form [beg, end], where beg and end are the endpoints of the domain. If None is given then the class domain is used. The default is None.
[beg, end]
beg
end
If given, the resulting array must be if the form [beg, end], where beg and end are the endpoints of the window. If None is given then the class window is used. The default is None.
Series of representing the identity.