numpy.polynomial.hermite.hermfromroots(roots)
[source]
Generate a Hermite series with given roots.
The function returns the coefficients of the polynomial
in Hermite form, where the r_n
are the roots specified in roots
. If a zero has multiplicity n, then it must appear in roots
n times. For instance, if 2 is a root of multiplicity three and 3 is a root of multiplicity 2, then roots
looks something like [2, 2, 2, 3, 3]. The roots can appear in any order.
If the returned coefficients are c
, then
The coefficient of the last term is not generally 1 for monic polynomials in Hermite form.
Parameters: 


Returns: 

See also
polyfromroots
, legfromroots
, lagfromroots
, chebfromroots
, hermefromroots
>>> from numpy.polynomial.hermite import hermfromroots, hermval >>> coef = hermfromroots((1, 0, 1)) >>> hermval((1, 0, 1), coef) array([0., 0., 0.]) >>> coef = hermfromroots((1j, 1j)) >>> hermval((1j, 1j), coef) array([0.+0.j, 0.+0.j])
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https://docs.scipy.org/doc/numpy1.17.0/reference/generated/numpy.polynomial.hermite.hermfromroots.html