Function
NumCosmoMathutil_fact_size
Declaration [src]
gulong
ncm_util_fact_size (
const gulong n
)
Description [src]
Calculate the smallest factorization of n such that
$n_f = 2^\mu \times 3^\nu \times 5^\alpha \times 7^\beta$
and $n_f \geq n$.
This functions is useful to find a fft size such that fftw can optimized it more easily.