# numpy.polynomial.hermite_e.hermemulx

polynomial.hermite_e.hermemulx(c)

  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.])

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