parameters: (pol)
return_statement: return res
docstring: 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.], domain=[-1,  1], window=[-1,  1])
      >>> c = P.Legendre(P.legendre.poly2leg(p.coef))
      >>> c
      Legendre([ 1.  ,  3.25,  1.  ,  0.75], domain=[-1,  1], window=[-1,  1]) # may vary
docstring_summary: Convert a polynomial to a Legendre series.
docstring_tokens: Convert a polynomial to a Legendre series .
function: def 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.], domain=[-1,  1], window=[-1,  1])
      >>> c = P.Legendre(P.legendre.poly2leg(p.coef))
      >>> c
      Legendre([ 1.  ,  3.25,  1.  ,  0.75], domain=[-1,  1], window=[-1,  1]) # may vary
  
      """
      [pol] = pu.as_series([pol])
      deg = len(pol) - 1
      res = 0
      for i in range(deg, -1, -1):
          res = legadd(legmulx(res), pol[i])
      return res
function_tokens: def poly2leg ( pol ) : [ pol ] = pu . as_series ( [ pol ] ) deg = len ( pol ) - 1 res = 0 for i in range ( deg , - 1 , - 1 ) : res = legadd ( legmulx ( res ) , pol [ i ] ) return res