Method

NumCosmoHICosmoVexpalpha

Declaration [src] 

gdouble
nc_hicosmo_Vexp_alpha (
  NcHICosmoVexp* Vexp,
  const gdouble tau
)

Description [src]

Computes $\alpha = \ln a$, where $a$ is the scale factor, at time tau.

Parameters

tau

Type: const gdouble

$\tau$.

Return value

Type: gdouble

$\alpha(\tau)$.