numpy.polynomial.hermite_e.hermemulx¶
- 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
- carray_like
1-D array of Hermite series coefficients ordered from low to high.
- Returns
- outndarray
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.])