#Scientific #Physics #Unit #Conversion #Natural

bin+lib natural_unit

Physical unit conversion program (SI, CGS, Natural, Geometrized)

4 releases

✓ Uses Rust 2018 edition

0.1.3 Jul 4, 2019
0.1.2 Jul 4, 2019
0.1.1 May 14, 2019
0.1.0 May 14, 2019

#74 in Science

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BSD-3-Clause

11KB
206 lines

Natural Unit

On crates.io On docs.rs travis
maintenance

Physical unit conversion with Fundamental constants

Unit System List

  • SI
  • CGS
  • Geometrized(With CGS)
  • Geometrized with unit solar mass
  • Natural Unit(With CGS)
  • Natural Unit(MeV)
  • Natural Unit(Gaussian)

How to use?

  1. Just declare three conversion factors - M, L, T
  2. Get automatically obtained remain conversion factors (momentum, energy and etc.)
  3. convert value using by declared conversion factor structure.

Example: CGS -> Geometrized with Solar radius = 1

extern crate natural_unit;
use natural_unit::*;

fn main() {
    // Declare mass, length, time conversion factor.
    let cgs_to_geom = ConversionFactor::new(
        CONSTANT_CGS.G / (CONSTANT_CGS.c.powi(2) * CONSTANT_CGS.r_solar),   // Mass conversion factor
        1f64 / CONSTANT_CGS.r_solar,                                        // Length conversion factor
        CONSTANT_CGS.c / CONSTANT_CGS.r_solar                               // Time conversion factor
    );
    
    // What do you want to convert?
    let solar_mass_cgs = CONSTANT_CGS.m_solar;                              // CGS Solar Mass
    
    // Convert! (`convert(f64, Dimension, ConversionFactor)`)
    let new_solar_mass = convert(solar_mass_cgs, Mass, cgs_to_geom);        // Converted Solar Mass
    
    // Invert! (`invert(f64, Dimension, ConversionFactor)`)
    let inverted_solar_mass = invert(new_solar_mass, Mass, cgs_to_geom);    // Inverted Solar Mass
    assert_eq!(solar_mass_cgs, inverted_solar_mass);
}

No runtime deps