The Math::Const module provides a collection of mathematical and physical constants. It is free software. You can distribute it under the terms of the GPL.
Simply type: "ruby install.rb". If you have problems contact me.
>> require "math/const" => true >> include Math::Const => Object >> AVOGADRO => 6.0221419900000000e+23 >> FARADAY => 96485.341472 >> SPEED_OF_LIGHT => 299792458.0 >> SOLAR_MASS => 1.9889200000000002e+30 >> CGS::SOLAR_MASS => 1.9889199999999999e+33 >>
Here is the list of available uni-less constants.
|
FINE_STRUCTURE AVOGADRO YOTTA ZETTA EXA PETA |
TERA GIGA MEGA KILO MILLI MICRO |
NANO PICO FEMTO ATTO ZEPTO YOCTO |
Constants with units are provided in both the MKS (meters, kilograms, seconds) and the CGS (centimeters, grams, seconds) standards. The default system is MKS, and the CGS system is available under Math::Const::CGS.
For example:
Math::Const::STD_ATMOSPHERE ==
1.01325x105 (Kg m / s2).
Math::Const::CGS::STD_ATMOSPHERE ==
1.01325x106 (g / cm s2).
| Unit | MKS units | CGS units |
| MINUTE | s | s |
| HOUR | s | s |
| DAY | s | s |
| WEEK | s | s |
| INCH | m | cm |
| FOOT | m | cm |
| YARD | m | cm |
| MILE | m | cm |
| NAUTICAL_MILE | m | cm |
| FATHOM | m | cm |
| MIL | m | cm |
| POINT | m | cm |
| TEXPOINT | m | cm |
| MICRON | m | cm |
| ANGSTROM | m | cm |
| HECTARE | m2 | cm2 |
| ACRE | m2 | cm2 |
| BARN | m2 | cm2 |
| LITER | m3 | cm3 |
| US_GALLON | m3 | cm3 |
| QUART | m3 | cm3 |
| PINT | m3 | cm3 |
| CUP | m3 | cm3 |
| FLUID_OUNCE | m3 | cm3 |
| TABLESPOON | m3 | cm3 |
| TEASPOON | m3 | cm3 |
| CANADIAN_GALLON | m3 | cm3 |
| UK_GALLON | m3 | cm3 |
| MILES_PER_HOUR | m / s | cm / s |
| KILOMETERS_PER_HOUR | m / s | cm / s |
| KNOT | m / s | cm / s |
| POUND_MASS | kg | g |
| OUNCE_MASS | kg | g |
| TON | kg | g |
| METRIC_TON | kg | g |
| UK_TON | kg | g |
| TROY_OUNCE | kg | g |
| CARAT | kg | g |
| NEWTON | kg m / s2 | g cm / s2 |
| GRAM_FORCE | kg m / s2 | g cm / s2 |
| POUND_FORCE | kg m / s2 | g cm / s2 |
| KILOPOUND_FORCE | kg m / s2 | g cm / s2 |
| POUNDAL | kg m / s2 | g cm / s2 |
| CALORIE | kg m2 / s2 | g cm2 / s2 |
| BTU | kg m2 / s2 | g cm2 / s2 |
| THERM | kg m2 / s2 | g cm2 / s2 |
| HORSEPOWER | kg m2 / s2 | g cm2 / s2 |
| PSI | kg / m s2 | g / cm s2 |
| JOULE | kg m2 / s2 | g cm2 / s2 |
| Constant | MKS units | CGS units |
| ASTRONOMICAL_UNIT | m | cm |
| ATOMIC_MASS (unified) | kg | g |
| BAR | kg / m s2 | g / cm s2 |
| BOHR_MAGNETON | A m2 | A cm2 |
| BOHR_RADIUS | m | cm |
| BOLTZMANN | kg m2 / K s2 | g cm2 / K s2 |
| CURIE | 1 / s | 1 / s |
| DYNE | kg m / s2 | g cm / s2 |
| ELECTRON_CHARGE | A s | A s |
| ELECTRON_MAGNETIC_MOMENT | A m2 | A cm2 |
| ELECTRON_VOLT | kg m2 / s2 | g cm2 / s2 |
| ERG | kg m2 / s2 | g cm2 / s2 |
| FARADAY | A s / mol | A s / mol |
| FOOTCANDLE | cd sr / m2 | cd sr / cm2 |
| FOOTLAMBERT | cd sr / m2 | cd sr / cm2 |
| GAUSS | kg / A s2 | g / A s2 |
| GRAV_ACCEL | m / s2 | cm / s2 |
| GRAV_CONSTANT | m3 / kg s3 | cm3 / g s3 |
| INCH_OF_MERCURY | kg / m s2 | g / cm s2 |
| INCH_OF_WATER | kg / m s2 | g / cm s2 |
| LAMBERT | cd sr / m2 | cd sr / cm2 |
| LIGHT_YEAR | m | cm |
| LUMEN | cd sr | |
| LUX | cd sr / m2 | cd sr / cm2 |
| MASS_ELECTRON | kg | g |
| MASS_MUON | kg | g |
| MASS_PROTON | kg | g |
| MASS_NEUTRON | kg | g |
| METER_OF_MERCURY | kg / m s2 | g / cm s2 |
| MOLAR_GAS | kg m2 / K mol s2 | g cm2 / K mol s2 |
| NUCLEAR_MAGNETON | A m2 | A cm2 |
| PARSEC | m | cm |
| PHOT | cd sr / m2 | cd sr / cm2 |
| PLANCKS_CONSTANT_H | kg m2 / s | g cm2 / s |
| PLANCKS_CONSTANT_HBAR | kg m2 / s | g cm2 / s |
| POISE | kg / m s | g / cm s |
| PROTON_MAGNETIC_MOMENT | A m2 | A cm2 |
| RAD | m2 / s2 | cm2 / s2 |
| ROENTGEN | A s / kg | A s / g |
| RYDBERG | kg m2 / s2 | g cm2 / s2 |
| SOLAR_MASS | kg | g |
| SPEED_OF_LIGHT | m / s | cm / s |
| STD_GAS_VOLUME | m3 / mol | cm3 / mol |
| STD_ATMOSPHERE | kg / m s2 | g / cm s2 |
| STILB | cd / m2 | cd / cm2 |
| STOKES | m2 / s | cm2 / s |
| TORR | kg / m s2 | g / cm s2 |
| UNIFIED_ATOMIC_MASS | kg | g |
| VACUUM_PERMEABILITY | kg m / A2 s2 | g cm / A2 s2 |
| VACUUM_PERMITTIVITY | A2 s2 / kg m2 | A2 s2 / g cm2 |