Method
NumCosmoXcorKernelIntegrandpeek_spectral
Declaration [src]
gboolean
nc_xcor_kernel_integrand_peek_spectral (
NcXcorKernelIntegrand* integrand,
NcmMatrix** coeffs,
gdouble* k_min,
gdouble* k_max
)
Description [src]
Peeks integrand‘s Chebyshev expansion, when it has one.
A pair of integrands that both report one, over the same interval, can have their outer integral evaluated on the coefficients rather than by quadrature: a product of Chebyshev series is a Chebyshev series, and its integral is a fixed weighted sum of the coefficients.
Parameters
coeffs-
Type:
NcmMatrixThe coefficient matrix, one row per component.
The argument will be set by the function. The returned data is owned by the instance. k_min-
Type:
gdouble*Lower end of the expansion interval.
The argument will be set by the function. k_max-
Type:
gdouble*Upper end of the expansion interval.
The argument will be set by the function.