precision.h File Reference

#include <float.h>
#include <string>
#include "constants.h"
#include "errors.h"

Go to the source code of this file.

Data Structures
struct	precision

Enumerations
enum class	evolver_type
enum class	pk_def { delta_m_squared , delta_tot_squared , delta_bc_squared , delta_tot_from_poisson_squared }
enum class	file_format
enum class	tca_method

Detailed Description

Precision parameters and the enums they use.

Enumeration Type Documentation

evolver_type

enum class evolver_type

strong

parameters related to the precision of the code and to the method of calculation list of evolver types for integrating perturbations over time

pk_def

enum class pk_def

strong

List of ways in which matter power spectrum P(k) can be defined. The standard definition is the first one (delta_m_squared) but alternative definitions can be useful in some projects.

Enumerator
delta_m_squared	normal definition (delta_m includes all non-relativistic species at late times)
delta_tot_squared	delta_tot includes all species contributions to (delta rho), and only non-relativistic contributions to rho
delta_bc_squared	delta_bc includes contribution of baryons and cdm only to (delta rho) and to rho
delta_tot_from_poisson_squared	use delta_tot inferred from gravitational potential through Poisson equation

file_format

enum class file_format

strong

Different ways to present output files

tca_method

enum class tca_method

strong

Approximation scheme labels used as precision parameter defaults