BALL::Constants Namespace Reference
[Common Definitions]

Variables
Mathematical constants.

BALL_EXTERN_VARIABLE const double	PI
	PI.
BALL_EXTERN_VARIABLE const double	E
	Euler's number - base of the natural logarithm.
BALL_EXTERN_VARIABLE double	EPSILON
Chemical/physical constants.

BALL_EXTERN_VARIABLE const double	ELEMENTARY_CHARGE
BALL_EXTERN_VARIABLE const double	e0
	Elementary charge (alias).
BALL_EXTERN_VARIABLE const double	ELECTRON_MASS
BALL_EXTERN_VARIABLE const double	PROTON_MASS
BALL_EXTERN_VARIABLE const double	NEUTRON_MASS
BALL_EXTERN_VARIABLE const double	AVOGADRO
BALL_EXTERN_VARIABLE const double	NA
BALL_EXTERN_VARIABLE const double	MOL
BALL_EXTERN_VARIABLE const double	BOLTZMANN
BALL_EXTERN_VARIABLE const double	k
BALL_EXTERN_VARIABLE const double	PLANCK
BALL_EXTERN_VARIABLE const double	h
BALL_EXTERN_VARIABLE const double	GAS_CONSTANT
BALL_EXTERN_VARIABLE const double	R
BALL_EXTERN_VARIABLE const double	FARADAY
BALL_EXTERN_VARIABLE const double	F
BALL_EXTERN_VARIABLE const double	BOHR_RADIUS
BALL_EXTERN_VARIABLE const double	a0
BALL_EXTERN_VARIABLE const double	VACUUM_PERMITTIVITY
BALL_EXTERN_VARIABLE const double	VACUUM_PERMEABILITY
BALL_EXTERN_VARIABLE const double	SPEED_OF_LIGHT
BALL_EXTERN_VARIABLE const double	c
BALL_EXTERN_VARIABLE const double	GRAVITATIONAL_CONSTANT
BALL_EXTERN_VARIABLE const double	FINE_STRUCTURE_CONSTANT
Conversion factors

BALL_EXTERN_VARIABLE const double	DEG_PER_RAD
BALL_EXTERN_VARIABLE const double	RAD_PER_DEG
BALL_EXTERN_VARIABLE const double	MM_PER_INCH
BALL_EXTERN_VARIABLE const double	M_PER_FOOT
BALL_EXTERN_VARIABLE const double	JOULE_PER_CAL
BALL_EXTERN_VARIABLE const double	CAL_PER_JOULE

Detailed Description

The constants namespace. This namespace contains definitions for some basic mathematical and physical constants. All constants are double precision.

: There are basically two ways of accessing these constants:

specify all namespaces:
float my_pi = BALL::Constants::PI
shortcut via the using directive:
using namespace BALL::Constants;

float my_pi = PI;

Variable Documentation

BALL_EXTERN_VARIABLE const double BALL::Constants::a0

Bohr radius (alias)

Definition at line 127 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::AVOGADRO

Avogadro constant. In units of $mol^{-1}$ ( $6.0221367 \cdot 10^{23} mol^{-1}$ ).

Definition at line 76 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::BOHR_RADIUS

Bohr radius. In units m ( $5.29177249 \cdot 10^{-11}$ m).

Definition at line 123 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::BOLTZMANN

Boltzmann constant. In units of J/K ( $1.380657 \cdot 10^{-23}$ J/K).

Definition at line 89 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::c

Speed of Light (alias)

Definition at line 149 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::CAL_PER_JOULE

Calories per Joule. 1/JOULE_PER_CAL

Definition at line 194 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::DEG_PER_RAD

Degree per rad. 57.2957795130823209

Definition at line 169 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::E

Euler's number - base of the natural logarithm.

Definition at line 38 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::e0

Elementary charge (alias).

Definition at line 56 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::ELECTRON_MASS

Electron mass. In units of kg ( $9.1093897 \cdot 10^{-31}$ kg).

Definition at line 61 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::ELEMENTARY_CHARGE

Elementary charge. In units of C ( $1.60217738 \cdot 10^{-19} C$ ).

Definition at line 53 of file constants.h.

BALL_EXTERN_VARIABLE double BALL::Constants::EPSILON

Internal theshold for equality comparisons. Default value is 1e-6.

Definition at line 43 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::F

Faraday constant (alias)

Definition at line 118 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::FARADAY

Faraday constant (= NA * e0)

Definition at line 114 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::FINE_STRUCTURE_CONSTANT

Fine structure constant. Without unit ( $7.29735 \cdot 10^{-3}$ ).

Definition at line 159 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::GAS_CONSTANT

Gas constant (= NA * k)

Definition at line 106 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::GRAVITATIONAL_CONSTANT

Gravitational constant. In units of $Nm^2kg^{-2}$ ( $6.67259 \cdot 10^{-11} Nm^2kg^{-2}$ ).

Definition at line 154 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::h

Planck constant (alias)

Definition at line 102 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::JOULE_PER_CAL

Joules per calorie. 4.184

Definition at line 189 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::k

Boltzmann constant (alias)

Definition at line 93 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::M_PER_FOOT

m per foot. 3.048

Definition at line 184 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::MM_PER_INCH

mm per inch. 25.4

Definition at line 179 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::MOL

Avogadro constant (alias)

Definition at line 84 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::NA

Avogadro constant (alias)

Definition at line 80 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::NEUTRON_MASS

Neutron mass. In units of kg ( $1.6749286 \cdot 10^{-27}$ kg).

Definition at line 71 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::PI

PI.

Definition at line 35 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::PLANCK

Planck constant. In units of Js ( $6.6260754 \cdot 10^{-34}$ Js).

Definition at line 98 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::PROTON_MASS

Proton mass. In units of kg ( $1.6726230 \cdot 10^{-27}$ kg).

Definition at line 66 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::R

Gas constant (alias)

Definition at line 110 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::RAD_PER_DEG

Rad per degree. 0.0174532925199432957

Definition at line 174 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::SPEED_OF_LIGHT

Speed of light. In units of m/s ( $2.99792458 \cdot 10^8 ms^{-1}$ ).

Definition at line 145 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::VACUUM_PERMEABILITY

Vacuum permeability. In units of $Js^2C^{-2}m^{-1}$ ( $4\pi \cdot 10^{-7} Js^2C^{-2}m^{-1}$ ).

Definition at line 140 of file constants.h.

BALL_EXTERN_VARIABLE const double BALL::Constants::VACUUM_PERMITTIVITY

Vacuum permittivity. In units of $C^2J^{-1}m^{-1}$ ( $8.85419 \cdot 10^{-12} C^2J^{-1}m^{-1}$ ).

Definition at line 135 of file constants.h.

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