numpy.polynomial.hermite_e.hermemulx¶
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numpy.polynomial.hermite_e.
hermemulx
(c)[source]¶ Multiply a Hermite series by x.
Multiply the Hermite series c by x, where x is the independent variable.
Parameters: c : array_like
1-D array of Hermite series coefficients ordered from low to high.
Returns: out : ndarray
Array representing the result of the multiplication.
Notes
The multiplication uses the recursion relationship for Hermite polynomials in the form
xP_i(x) = (P_{i + 1}(x) + iP_{i - 1}(x)))
Examples
>>> from numpy.polynomial.hermite_e import hermemulx >>> hermemulx([1, 2, 3]) array([ 2., 7., 2., 3.])