fchebyshev¶
-
pydl.pydlutils.trace.
fchebyshev
(x, m)[source]¶ Compute the first
m
Chebyshev polynomials.Parameters: - x : array-like
Compute the Chebyshev polynomials at these abscissa values.
- m :
int
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: - :class:`numpy.ndarray`