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# numpy.polynomial.laguerre.poly2lag

`numpy.polynomial.laguerre.``poly2lag`(pol)

  Convert a polynomial to a Laguerre series.

  Convert an array representing the coefficients of a polynomial (relative to the “standard” basis) ordered from lowest degree to highest, to an array of the coefficients of the equivalent Laguerre series, ordered from lowest to highest degree.

  Parameters : | pol : array_like 1-D array containing the polynomial coefficients
  Returns : | c : ndarray 1-D array containing the coefficients of the equivalent Laguerre series.

  See also

  `lag2poly`

  Notes

  The easy way to do conversions between polynomial basis sets is to use the convert method of a class instance.

  Examples

      >>> from numpy.polynomial.laguerre import poly2lag
      >>> poly2lag(np.arange(4))
      array([ 23., -63.,  58., -18.])

### Navigation

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- previous |
- NumPy v1.7 Manual (DRAFT) »
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- Laguerre Module (`numpy.polynomial.laguerre`) »