numpy.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: 


Returns: 

New in version 1.7.0.
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Licensed under the 3clause BSD License.
https://docs.scipy.org/doc/numpy1.17.0/reference/generated/numpy.polynomial.polynomial.polycompanion.html