Function

NumCosmoMathutil_1pcosx

Declaration [src]

gdouble
ncm_util_1pcosx (
  const gdouble sinx,
  const gdouble cosx
)

Description [src]

Calculates $1 + \cos(x)$ using the appropriated taylor series when $\cos(x) \approx -1$.

Parameters

sinx

Type: const gdouble

A real number $\sin(x)$.

cosx

Type: const gdouble

A real number $\cos(x)$.

Return value

Type: gdouble

$1 + \cos(x)$.