Function
NumCosmoMathSpectralchebyshev_deriv
Declaration [src]
gdouble
ncm_spectral_chebyshev_deriv (
GArray* a,
gdouble t
)
Description [src]
Evaluates the first derivative of a Chebyshev expansion at $t$ using a fused backward recurrence and Clenshaw algorithm, without explicitly forming the derivative series. See the Spectral Methods page for the derivative-coefficient relations.