fchebyshev

pydl.pydlutils.trace.fchebyshev(x, m)

Compute the first m Chebyshev polynomials.

Parameters

xarray-like

Compute the Chebyshev polynomials at these abscissa values.

mint

The number of Chebyshev polynomials to compute. For example, if \(m = 3\), \(T_0 (x)\), \(T_1 (x)\) and \(T_2 (x)\) will be computed.

Returns

numpy.ndarray