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Module constants

numrs2::new_modules

Module constants 

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Physical Constants Module for NumRS2

A comprehensive, NIST-compliant physical constants library providing fundamental, atomic, nuclear, and electromagnetic constants based on the CODATA 2022 internationally recommended values.

§Module Organization

  • fundamental: Fundamental physical constants (speed of light, Planck, Boltzmann, etc.)
  • atomic: Atomic and nuclear constants (Bohr radius, Rydberg, magneton, etc.)
  • electromagnetic: Electromagnetic constants (permittivity, permeability, flux quantum, etc.)
  • units: Unit conversion constants and functions (SI prefixes, energy, temperature, length)

§Usage

use numrs2::new_modules::constants::{SPEED_OF_LIGHT, PLANCK_CONSTANT, BOLTZMANN_CONSTANT};

// Access constant values
let c = SPEED_OF_LIGHT.value;
let h = PLANCK_CONSTANT.value;

// Display full information
println!("{}", SPEED_OF_LIGHT);
// Output: Speed of light in vacuum (c) = 299792458 m/s (exact)

§Data Source

All values are from CODATA 2022 (Committee on Data of the International Science Council). Constants defined as exact in the 2019 SI redefinition have zero uncertainty.

§References

Re-exports§

pub use fundamental::ATOMIC_MASS_UNIT;
pub use fundamental::AVOGADRO_CONSTANT;
pub use fundamental::BOLTZMANN_CONSTANT;
pub use fundamental::ELECTRON_CHARGE_MASS_RATIO;
pub use fundamental::ELECTRON_MASS;
pub use fundamental::ELEMENTARY_CHARGE;
pub use fundamental::FINE_STRUCTURE_CONSTANT;
pub use fundamental::GAS_CONSTANT;
pub use fundamental::GRAVITATIONAL_CONSTANT;
pub use fundamental::NEUTRON_MASS;
pub use fundamental::PLANCK_CONSTANT;
pub use fundamental::PROTON_MASS;
pub use fundamental::REDUCED_PLANCK_CONSTANT;
pub use fundamental::SPEED_OF_LIGHT;
pub use fundamental::STEFAN_BOLTZMANN_CONSTANT;
pub use atomic::BOHR_MAGNETON;
pub use atomic::BOHR_RADIUS;
pub use atomic::CLASSICAL_ELECTRON_RADIUS;
pub use atomic::COMPTON_WAVELENGTH;
pub use atomic::ELECTRON_G_FACTOR;
pub use atomic::HARTREE_ENERGY;
pub use atomic::NUCLEAR_MAGNETON;
pub use atomic::PROTON_MAGNETIC_MOMENT;
pub use atomic::RYDBERG_CONSTANT;
pub use electromagnetic::CONDUCTANCE_QUANTUM;
pub use electromagnetic::COULOMB_CONSTANT;
pub use electromagnetic::IMPEDANCE_OF_FREE_SPACE;
pub use electromagnetic::JOSEPHSON_CONSTANT;
pub use electromagnetic::MAGNETIC_FLUX_QUANTUM;
pub use electromagnetic::VACUUM_PERMEABILITY;
pub use electromagnetic::VACUUM_PERMITTIVITY;
pub use electromagnetic::VON_KLITZING_CONSTANT;

Modules§

atomic
Atomic and Nuclear Physical Constants (CODATA 2022)
electromagnetic
Electromagnetic Physical Constants (CODATA 2022)
fundamental
Fundamental Physical Constants (CODATA 2022)
units
Unit Conversion Constants and Functions

Structs§

PhysicalConstant
A physical constant with its value, uncertainty, unit, symbol, and name.