This is documentation for an old release of NumPy (version 1.8.0). Read this page in the documentation of the latest stable release (version > 1.17).
numpy.polynomial.laguerre.lagcompanion¶
- numpy.polynomial.laguerre.lagcompanion(c)[source]¶
Return the companion matrix of c.
The usual companion matrix of the Laguerre polynomials is already symmetric when c is a basis Laguerre polynomial, so no scaling is applied.
Parameters : c : array_like
1-D array of Laguerre series coefficients ordered from low to high degree.
Returns : mat : ndarray
Companion matrix of dimensions (deg, deg).
Notes