bundles / numpy 2.5.0.dev0+git20251130.2de293a / numpy / polyadd
_ArrayFunctionDispatcher
numpy:polyadd
source: /dev/numpy/build-install/usr/lib/python3.14/site-packages/numpy/lib/_polynomial_impl.py:795
Signature
def polyadd(a1, a2)Summary
Find the sum of two polynomials.
Extended Summary
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.
Parameters
a1, a2: array_like or poly1d objectInput polynomials.
Returns
out: ndarray or poly1d objectThe 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.
Examples
import numpy as np 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) print(np.polyadd(p1, p2))✓
2 9 x + 6 x + 6
See also
Aliases
numpy.polyadd