numpy.polynomial.polynomial.Polynomial — NumPy v2.4.dev0 Manual (original) (raw)

class numpy.polynomial.polynomial.Polynomial(coef, domain=None, window=None, symbol='x')[source]#

A power series class.

The Polynomial class provides the standard Python numerical methods ‘+’, ‘-’, ‘*’, ‘//’, ‘%’, ‘divmod’, ‘**’, and ‘()’ as well as the attributes and methods listed below.

Parameters:

coefarray_like

Polynomial coefficients in order of increasing degree, i.e.,(1, 2, 3) give 1 + 2*x + 3*x**2.

domain(2,) array_like, optional

Domain to use. The interval [domain[0], domain[1]] is mapped to the interval [window[0], window[1]] by shifting and scaling. The default value is [-1., 1.].

window(2,) array_like, optional

Window, see domain for its use. The default value is [-1., 1.].

symbolstr, optional

Symbol used to represent the independent variable in string representations of the polynomial expression, e.g. for printing. The symbol must be a valid Python identifier. Default value is ‘x’.

New in version 1.24.

Attributes:

basis_name

symbol

Methods