Method

NumCosmoMathPowspecderiv_z

Declaration [src] 

gdouble
ncm_powspec_deriv_z (
  NcmPowspec* powspec,
  NcmModel* model,
  const gdouble z,
  const gdouble k
)

Description [src]

Evaluates the derivative of the power spectrum powspec with respect to $z$ at $(z, k)$.

Parameters

model

Type: NcmModel

A NcmModel.

The argument can be NULL.
The data is owned by the caller of the method.
z

Type: const gdouble

Time $z$.

k

Type: const gdouble

Mode $k$.

Return value

Type: gdouble

$\partial P(z, k) / \partial z$.