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# numpy.polynomial.legendre.poly2leg

`numpy.polynomial.legendre.``poly2leg`(pol)

  Convert a polynomial to a Legendre 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 Legendre 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 Legendre series.

  See also

  `leg2poly`

  Notes

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

  Examples

      >>> from numpy import polynomial as P
      >>> p = P.Polynomial(np.arange(4))
      >>> p
      Polynomial([ 0.,  1.,  2.,  3.], [-1.,  1.])
      >>> c = P.Legendre(P.poly2leg(p.coef))
      >>> c
      Legendre([ 1.  ,  3.25,  1.  ,  0.75], [-1.,  1.])

### Navigation

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- NumPy v1.7 Manual (DRAFT) »
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