numpy.polynomial.chebyshev.chebweight — NumPy v1.13 Manual (original) (raw)

numpy.polynomial.chebyshev. chebweight(x)[source]

The weight function of the Chebyshev polynomials.

The weight function is 1/\sqrt{1 - x^2} and the interval of integration is [-1, 1]. The Chebyshev polynomials are orthogonal, but not normalized, with respect to this weight function.

Parameters: x : array_like Values at which the weight function will be computed.
Returns: w : ndarray The weight function at x.

Notes

New in version 1.7.0.