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# scipy.special.legendre

`scipy.special.``legendre`(n, monic=False)

  Legendre polynomial.

  Defined to be the solution of

  \[\frac{d}{dx}\left[(1 - x^2)\frac{d}{dx}P_n(x)\right] + n(n + 1)P_n(x) = 0;\]

  \(P_n(x)\) is a polynomial of degree \(n\).

  Parameters: | n : int Degree of the polynomial. monic : bool, optional If True, scale the leading coefficient to be 1. Default is False.
  Returns: | P : orthopoly1d Legendre polynomial.

  Notes

  The polynomials \(P_n\) are orthogonal over \([-1, 1]\) with weight function 1.

  Examples

  Generate the 3rd-order Legendre polynomial 1/2*(5x^3 + 0x^2 - 3x + 0):

      >>> from scipy.special import legendre
      >>> legendre(3)
      poly1d([ 2.5,  0. , -1.5,  0. ])