numpy.polynomial.polynomial.Polynomial — NumPy v1.13 Manual (original) (raw)
class numpy.polynomial.polynomial. Polynomial(coef, domain=None, window=None)[source]¶
A power series class.
The Polynomial class provides the standard Python numerical methods ‘+’, ‘-‘, ‘*’, ‘//’, ‘%’, ‘divmod’, ‘**’, and ‘()’ as well as the attributes and methods listed in the ABCPolyBase documentation.
| Parameters: | coef : array_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]. New in version 1.6.0. |
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Methods
| __call__(arg) | |
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| basis(deg[, domain, window]) | Series basis polynomial of degree deg. |
| cast(series[, domain, window]) | Convert series to series of this class. |
| convert([domain, kind, window]) | Convert series to a different kind and/or domain and/or window. |
| copy() | Return a copy. |
| cutdeg(deg) | Truncate series to the given degree. |
| degree() | The degree of the series. |
| deriv([m]) | Differentiate. |
| fit(x, y, deg[, domain, rcond, full, w, window]) | Least squares fit to data. |
| fromroots(roots[, domain, window]) | Return series instance that has the specified roots. |
| has_samecoef(other) | Check if coefficients match. |
| has_samedomain(other) | Check if domains match. |
| has_sametype(other) | Check if types match. |
| has_samewindow(other) | Check if windows match. |
| identity([domain, window]) | Identity function. |
| integ([m, k, lbnd]) | Integrate. |
| linspace([n, domain]) | Return x, y values at equally spaced points in domain. |
| mapparms() | Return the mapping parameters. |
| roots() | Return the roots of the series polynomial. |
| trim([tol]) | Remove trailing coefficients |
| truncate(size) | Truncate series to length size. |