polyadd(a1, a2)
This forms part of the old polynomial API. Since version 1.4, the new polynomial API defined in :None:None:`numpy.polynomial` is preferred. A summary of the differences can be found in the :None:doc:`transition guide </reference/routines.polynomials>`.
Returns the polynomial resulting from the sum of two input polynomials. Each input must be either a poly1d object or a 1D sequence of polynomial coefficients, from highest to lowest degree.
Input polynomials.
The sum of the inputs. If either input is a poly1d object, then the output is also a poly1d object. Otherwise, it is a 1D array of polynomial coefficients from highest to lowest degree.
Find the sum of two polynomials.
poly1d
A one-dimensional polynomial class.
>>> np.polyadd([1, 2], [9, 5, 4]) array([9, 6, 6])
Using poly1d objects:
>>> p1 = np.poly1d([1, 2])
... p2 = np.poly1d([9, 5, 4])
... print(p1) 1 x + 2
>>> print(p2) 2 9 x + 5 x + 4
>>> print(np.polyadd(p1, p2)) 2 9 x + 6 x + 6See :
The following pages refer to to this document either explicitly or contain code examples using this.
numpy.polynomial.polynomial.polymul
numpy.polynomial.polynomial.polypow
numpy.polynomial.polynomial.polysub
numpy.polymul
numpy.polynomial.polynomial.polymulx
numpy.polydiv
numpy.polynomial.polynomial.polydiv
numpy.polyadd
numpy.polysub
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