`numpy:polymul`

source: /dev/numpy/build-install/usr/lib/python3.14/site-packages/numpy/lib/_polynomial_impl.py :921

Signature

def polymul ( a1 , a2 )

Summary

Find the product of two polynomials.

Extended Summary

Finds the polynomial resulting from the multiplication of the 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 object: Input polynomials.

Returns

out : ndarray or poly1d object: The polynomial resulting from the multiplication of the inputs. If either inputs 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.polymul([1, 2, 3], [9, 5, 1])

✓

Using poly1d objects:

p1 = np.poly1d([1, 2, 3])
p2 = np.poly1d([9, 5, 1])
print(p1)
print(p2)
print(np.polymul(p1, p2))

`numpy:polymul`

Signature

Summary

Extended Summary

Parameters

Returns

Examples

See also

Aliases

Referenced by

This package