physical_constant.m

JAVA 数学程序库 提供常规的数值计算程序包

## Copyright (C) 2007 Muthiah Annamalai 
##
## --parts of code AUTOGENERATED. DONOT EDIT--
## --DONOT EDIT--
##
## This code is released under GPL
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING.  If not, write to the Free
## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
## 02110-1301, USA.

## -*- texinfo -*-
## @deftypefn {Function File} [@var{Val},@var{unit},@var{uncertanity},@var{desc},@var{name}] {} =physical_constant(@var{arg})
## @var{arg} is the name of the physical constant to retrieve.
## The output arguments are the attributes which you need. 
## By default, the return value is the constant value.
## if no arguments are passed, depending on the output arguments the entire units structure is returned
## @var{Val} is actual value of the constant.
## @var{Unit} is a Units string.
## @var{uncertanity} is +/- value to constant.
##
## Autogenerated on Fri Feb 23 00:35:47 2007
## from NIST database at  http://physics.nist.gov/constants 
## @end deftypefn

## Fundamental Physical Constants --- Complete Listing
## From:  http://physics.nist.gov/constants
## Source: Peter J. Mohr and Barry N. Taylor, CODATA Recommended Values of the 
## Fundamental Physical Constants: 2002, published in Rev. Mod. Phys.
## vol. 77(1) 1-107 (2005).
## Taken from: physics.nist.gov/cuu/Constants/Table/allascii.txt
##
    
function  [rval,unit,uncert,desc,name]=physical_constant(arg)

 persistent unit_data;
 if isstruct(unit_data) == 0 
   unit_data=struct();
   unit_data( 1 ).name="ALPHA_PARTICLE_ELECTRON_MASS_RATIO";
   unit_data( 1 ).description="alpha particle-electron mass ratio";
   unit_data( 1 ).value=7294.2995363;
   unit_data( 1 ).units="";
   unit_data( 1 ).uncertanity=0.0000032;

   unit_data( 2 ).name="ALPHA_PARTICLE_MASS";
   unit_data( 2 ).description="alpha particle mass";
   unit_data( 2 ).value=6.6446565e-27;
   unit_data( 2 ).units="kg";
   unit_data( 2 ).uncertanity=0.0000011e-27;

   unit_data( 3 ).name="ALPHA_PARTICLE_MASS_ENERGY_EQUIVALENT";
   unit_data( 3 ).description="alpha particle mass energy equivalent";
   unit_data( 3 ).value=5.9719194e-10;
   unit_data( 3 ).units="J";
   unit_data( 3 ).uncertanity=0.0000010e-10;

   unit_data( 4 ).name="ALPHA_PARTICLE_MASS_ENERGY_EQUIVALENT_IN_MEV";
   unit_data( 4 ).description="alpha particle mass energy equivalent in MeV";
   unit_data( 4 ).value=3727.37917;
   unit_data( 4 ).units="MeV";
   unit_data( 4 ).uncertanity=0.00032;

   unit_data( 5 ).name="ALPHA_PARTICLE_MASS_IN_U";
   unit_data( 5 ).description="alpha particle mass in u";
   unit_data( 5 ).value=4.001506179149;
   unit_data( 5 ).units="u";
   unit_data( 5 ).uncertanity=0.000000000056;

   unit_data( 6 ).name="ALPHA_PARTICLE_MOLAR_MASS";
   unit_data( 6 ).description="alpha particle molar mass";
   unit_data( 6 ).value=4.001506179149e-3;
   unit_data( 6 ).units="kg mol^-1";
   unit_data( 6 ).uncertanity=0.000000000056e-3;

   unit_data( 7 ).name="ALPHA_PARTICLE_PROTON_MASS_RATIO";
   unit_data( 7 ).description="alpha particle-proton mass ratio";
   unit_data( 7 ).value=3.97259968907;
   unit_data( 7 ).units="";
   unit_data( 7 ).uncertanity=0.00000000052;

   unit_data( 8 ).name="ANGSTROM_STAR";
   unit_data( 8 ).description="Angstrom star";
   unit_data( 8 ).value=1.00001509e-10;
   unit_data( 8 ).units="m";
   unit_data( 8 ).uncertanity=0.00000090e-10;

   unit_data( 9 ).name="ATOMIC_MASS_CONSTANT";
   unit_data( 9 ).description="atomic mass constant";
   unit_data( 9 ).value=1.66053886e-27;
   unit_data( 9 ).units="kg";
   unit_data( 9 ).uncertanity=0.00000028e-27;

   unit_data( 10 ).name="ATOMIC_MASS_CONSTANT_ENERGY_EQUIVALENT";
   unit_data( 10 ).description="atomic mass constant energy equivalent";
   unit_data( 10 ).value=1.49241790e-10;
   unit_data( 10 ).units="J";
   unit_data( 10 ).uncertanity=0.00000026e-10;

   unit_data( 11 ).name="ATOMIC_MASS_CONSTANT_ENERGY_EQUIVALENT_IN_MEV";
   unit_data( 11 ).description="atomic mass constant energy equivalent in MeV";
   unit_data( 11 ).value=931.494043;
   unit_data( 11 ).units="MeV";
   unit_data( 11 ).uncertanity=0.000080;

   unit_data( 12 ).name="ATOMIC_MASS_UNIT_ELECTRON_VOLT";
   unit_data( 12 ).description="atomic mass unit-electron volt relationship";
   unit_data( 12 ).value=931.494043e6;
   unit_data( 12 ).units="eV";
   unit_data( 12 ).uncertanity=0.000080e6;

   unit_data( 13 ).name="ATOMIC_MASS_UNIT_HARTREE";
   unit_data( 13 ).description="atomic mass unit-hartree relationship";
   unit_data( 13 ).value=3.423177686e7;
   unit_data( 13 ).units="E_h";
   unit_data( 13 ).uncertanity=0.000000023e7;

   unit_data( 14 ).name="ATOMIC_MASS_UNIT_HERTZ";
   unit_data( 14 ).description="atomic mass unit-hertz relationship";
   unit_data( 14 ).value=2.252342718e23;
   unit_data( 14 ).units="Hz";
   unit_data( 14 ).uncertanity=0.000000015e23;

   unit_data( 15 ).name="ATOMIC_MASS_UNIT_INVERSE_METER";
   unit_data( 15 ).description="atomic mass unit-inverse meter relationship";
   unit_data( 15 ).value=7.513006608e14;
   unit_data( 15 ).units="m^-1";
   unit_data( 15 ).uncertanity=0.000000050e14;

   unit_data( 16 ).name="ATOMIC_MASS_UNIT_JOULE";
   unit_data( 16 ).description="atomic mass unit-joule relationship";
   unit_data( 16 ).value=1.49241790e-10;
   unit_data( 16 ).units="J";
   unit_data( 16 ).uncertanity=0.00000026e-10;

   unit_data( 17 ).name="ATOMIC_MASS_UNIT_KELVIN";
   unit_data( 17 ).description="atomic mass unit-kelvin relationship";
   unit_data( 17 ).value=1.0809527e13;
   unit_data( 17 ).units="K";
   unit_data( 17 ).uncertanity=0.0000019e13;

   unit_data( 18 ).name="ATOMIC_MASS_UNIT_KILOGRAM";
   unit_data( 18 ).description="atomic mass unit-kilogram relationship";
   unit_data( 18 ).value=1.66053886e-27;
   unit_data( 18 ).units="kg";
   unit_data( 18 ).uncertanity=0.00000028e-27;

   unit_data( 19 ).name="ATOMIC_UNIT_OF_1ST_HYPERPOLARIZABLITY";
   unit_data( 19 ).description="atomic unit of 1st hyperpolarizablity";
   unit_data( 19 ).value=3.20636151e-53;
   unit_data( 19 ).units="C^3 m^3 J^-2";
   unit_data( 19 ).uncertanity=0.00000028e-53;

   unit_data( 20 ).name="ATOMIC_UNIT_OF_2ND_HYPERPOLARIZABLITY";
   unit_data( 20 ).description="atomic unit of 2nd hyperpolarizablity";
   unit_data( 20 ).value=6.2353808e-65;
   unit_data( 20 ).units="C^4 m^4 J^-3";
   unit_data( 20 ).uncertanity=0.0000011e-65;

   unit_data( 21 ).name="ATOMIC_UNIT_OF_ACTION";
   unit_data( 21 ).description="atomic unit of action";
   unit_data( 21 ).value=1.05457168e-34;
   unit_data( 21 ).units="J s";
   unit_data( 21 ).uncertanity=0.00000018e-34;

   unit_data( 22 ).name="ATOMIC_UNIT_OF_CHARGE";
   unit_data( 22 ).description="atomic unit of charge";
   unit_data( 22 ).value=1.60217653e-19;
   unit_data( 22 ).units="C";
   unit_data( 22 ).uncertanity=0.00000014e-19;

   unit_data( 23 ).name="ATOMIC_UNIT_OF_CHARGE_DENSITY";
   unit_data( 23 ).description="atomic unit of charge density";
   unit_data( 23 ).value=1.081202317e12;
   unit_data( 23 ).units="C m^-3";
   unit_data( 23 ).uncertanity=0.000000093e12;

   unit_data( 24 ).name="ATOMIC_UNIT_OF_CURRENT";
   unit_data( 24 ).description="atomic unit of current";
   unit_data( 24 ).value=6.62361782e-3;
   unit_data( 24 ).units="A";
   unit_data( 24 ).uncertanity=0.00000057e-3;

   unit_data( 25 ).name="ATOMIC_UNIT_OF_ELECTRIC_DIPOLE_MOMENT";
   unit_data( 25 ).description="atomic unit of electric dipole moment";
   unit_data( 25 ).value=8.47835309e-30;
   unit_data( 25 ).units="C m";
   unit_data( 25 ).uncertanity=0.00000073e-30;

   unit_data( 26 ).name="ATOMIC_UNIT_OF_ELECTRIC_FIELD";
   unit_data( 26 ).description="atomic unit of electric field";
   unit_data( 26 ).value=5.14220642e11;
   unit_data( 26 ).units="V m^-1";
   unit_data( 26 ).uncertanity=0.00000044e11;

   unit_data( 27 ).name="ATOMIC_UNIT_OF_ELECTRIC_FIELD_GRADIENT";
   unit_data( 27 ).description="atomic unit of electric field gradient";
   unit_data( 27 ).value=9.71736182e21;
   unit_data( 27 ).units="V m^-2";
   unit_data( 27 ).uncertanity=0.00000083e21;

   unit_data( 28 ).name="ATOMIC_UNIT_OF_ELECTRIC_POLARIZABLITY";
   unit_data( 28 ).description="atomic unit of electric polarizablity";
   unit_data( 28 ).value=1.648777274e-41;
   unit_data( 28 ).units="C^2 m^2 J^-1";
   unit_data( 28 ).uncertanity=0.000000016e-41;

   unit_data( 29 ).name="ATOMIC_UNIT_OF_ELECTRIC_POTENTIAL";
   unit_data( 29 ).description="atomic unit of electric potential";
   unit_data( 29 ).value=27.2113845;
   unit_data( 29 ).units="V";
   unit_data( 29 ).uncertanity=0.0000023;

   unit_data( 30 ).name="ATOMIC_UNIT_OF_ELECTRIC_QUADRUPOLE_MOMENT";
   unit_data( 30 ).description="atomic unit of electric quadrupole moment";
   unit_data( 30 ).value=4.48655124e-40;
   unit_data( 30 ).units="C m^2";
   unit_data( 30 ).uncertanity=0.00000039e-40;

   unit_data( 31 ).name="ATOMIC_UNIT_OF_ENERGY";
   unit_data( 31 ).description="atomic unit of energy";
   unit_data( 31 ).value=4.35974417e-18;
   unit_data( 31 ).units="J";
   unit_data( 31 ).uncertanity=0.00000075e-18;

   unit_data( 32 ).name="ATOMIC_UNIT_OF_FORCE";
   unit_data( 32 ).description="atomic unit of force";
   unit_data( 32 ).value=8.2387225e-8;
   unit_data( 32 ).units="N";
   unit_data( 32 ).uncertanity=0.0000014e-8;

   unit_data( 33 ).name="ATOMIC_UNIT_OF_LENGTH";
   unit_data( 33 ).description="atomic unit of length";
   unit_data( 33 ).value=0.5291772108e-10;
   unit_data( 33 ).units="m";
   unit_data( 33 ).uncertanity=0.0000000018e-10;

   unit_data( 34 ).name="ATOMIC_UNIT_OF_MAGNETIZABILITY";
   unit_data( 34 ).description="atomic unit of magnetizability";
   unit_data( 34 ).value=7.89103660e-29;
   unit_data( 34 ).units="J T^-2";
   unit_data( 34 ).uncertanity=0.00000013e-29;

   unit_data( 35 ).name="ATOMIC_UNIT_OF_MAGN_DIPOLE_MOMENT";
   unit_data( 35 ).description="atomic unit of magn. dipole moment";
   unit_data( 35 ).value=1.85480190e-23;
   unit_data( 35 ).units="J T^-1";
   unit_data( 35 ).uncertanity=0.00000016e-23;

   unit_data( 36 ).name="ATOMIC_UNIT_OF_MAGN_FLUX_DENSITY";
   unit_data( 36 ).description="atomic unit of magn. flux density";
   unit_data( 36 ).value=2.35051742e5;
   unit_data( 36 ).units="T";
   unit_data( 36 ).uncertanity=0.00000020e5;

   unit_data( 37 ).name="ATOMIC_UNIT_OF_MASS";
   unit_data( 37 ).description="atomic unit of mass";
   unit_data( 37 ).value=9.1093826e-31;
   unit_data( 37 ).units="kg";
   unit_data( 37 ).uncertanity=0.0000016e-31;

   unit_data( 38 ).name="ATOMIC_UNIT_OF_MOMENTUM";
   unit_data( 38 ).description="atomic unit of momentum";
   unit_data( 38 ).value=1.99285166e-24;
   unit_data( 38 ).units="kg m s^-1";
   unit_data( 38 ).uncertanity=0.00000034e-24;

   unit_data( 39 ).name="ATOMIC_UNIT_OF_PERMITTIVITY";
   unit_data( 39 ).description="atomic unit of permittivity";
   unit_data( 39 ).value=1.112650056e-10;
   unit_data( 39 ).units="F m^-1";
   unit_data( 39 ).uncertanity=0.0;

   unit_data( 40 ).name="ATOMIC_UNIT_OF_TIME";
   unit_data( 40 ).description="atomic unit of time";
   unit_data( 40 ).value=2.418884326505e-17;
   unit_data( 40 ).units="s";
   unit_data( 40 ).uncertanity=0.000000000016e-17;

   unit_data( 41 ).name="ATOMIC_UNIT_OF_VELOCITY";
   unit_data( 41 ).description="atomic unit of velocity";
   unit_data( 41 ).value=2.1876912633e6;
   unit_data( 41 ).units="m s^-1";
   unit_data( 41 ).uncertanity=0.0000000073e6;

   unit_data( 42 ).name="AVOGADRO_CONSTANT";
   unit_data( 42 ).description="Avogadro constant";
   unit_data( 42 ).value=6.0221415e23;
   unit_data( 42 ).units="mol^-1";
   unit_data( 42 ).uncertanity=0.0000010e23;

   unit_data( 43 ).name="BOHR_MAGNETON";
   unit_data( 43 ).description="Bohr magneton";
   unit_data( 43 ).value=927.400949e-26;
   unit_data( 43 ).units="J T^-1";
   unit_data( 43 ).uncertanity=0.000080e-26;

   unit_data( 44 ).name="BOHR_MAGNETON_IN_EV_PER_T";
   unit_data( 44 ).description="Bohr magneton in eV/T";
   unit_data( 44 ).value=5.788381804e-5;
   unit_data( 44 ).units="eV T^-1";
   unit_data( 44 ).uncertanity=0.000000039e-5;

   unit_data( 45 ).name="BOHR_MAGNETON_IN_HZ_PER_T";
   unit_data( 45 ).description="Bohr magneton in Hz/T";
   unit_data( 45 ).value=13.9962458e9;
   unit_data( 45 ).units="Hz T^-1";
   unit_data( 45 ).uncertanity=0.0000012e9;

   unit_data( 46 ).name="BOHR_MAGNETON_IN_INVERSE_METERS_PER_TESLA";
   unit_data( 46 ).description="Bohr magneton in inverse meters per tesla";
   unit_data( 46 ).value=46.6864507;
   unit_data( 46 ).units="m^-1 T^-1";
   unit_data( 46 ).uncertanity=0.0000040;

   unit_data( 47 ).name="BOHR_MAGNETON_IN_K_PER_T";
   unit_data( 47 ).description="Bohr magneton in K/T";
   unit_data( 47 ).value=0.6717131;
   unit_data( 47 ).units="K T^-1";
   unit_data( 47 ).uncertanity=0.0000012;

   unit_data( 48 ).name="BOHR_RADIUS";
   unit_data( 48 ).description="Bohr radius";
   unit_data( 48 ).value=0.5291772108e-10;
   unit_data( 48 ).units="m";
   unit_data( 48 ).uncertanity=0.0000000018e-10;

   unit_data( 49 ).name="BOLTZMANN_CONSTANT";
   unit_data( 49 ).description="Boltzmann constant";
   unit_data( 49 ).value=1.3806505e-23;
   unit_data( 49 ).units="J K^-1";
   unit_data( 49 ).uncertanity=0.0000024e-23;