numpy.polynomial.polynomial.polycompanion
- polynomial.polynomial. polycompanion ( c ) [source]
-
Return the companion matrix of c.
The companion matrix for power series cannot be made symmetric by scaling the basis, so this function differs from those for the orthogonal polynomials.
- Parameters
-
- c array_like
-
1-D array of polynomial coefficients ordered from low to high degree.
- Returns
-
- mat ndarray
-
Companion matrix of dimensions (deg, deg).
Notes
New in version 1.7.0.
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Licensed under the 3-clause BSD License.
https://numpy.org/doc/1.22/reference/generated/numpy.polynomial.polynomial.polycompanion.html