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// --------------------------------------------------------------------------
// OpenMS -- Open-Source Mass Spectrometry
// --------------------------------------------------------------------------
// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2013.
//
// This software is released under a three-clause BSD license:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of any author or any participating institution
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
// For a full list of authors, refer to the file AUTHORS.
// --------------------------------------------------------------------------
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL ANY OF THE AUTHORS OR THE CONTRIBUTING
// INSTITUTIONS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// --------------------------------------------------------------------------
// $Maintainer: Stephan Aiche$
// $Authors: Marc Sturm $
// --------------------------------------------------------------------------
#include <OpenMS/CONCEPT/Constants.h>
namespace OpenMS
{
namespace Constants
{
// EPSILON (used for comparisons)
double EPSILON = 1e-6;
// PI
const double PI = 3.14159265358979323846L;
// Euler's number - base of the natural logarithm
const double E = 2.718281828459045235L;
// Elementary charge
const double ELEMENTARY_CHARGE = 1.60217738E-19L; // C
// Elementary charge (alias)
const double e0 = ELEMENTARY_CHARGE;
// Electron mass
const double ELECTRON_MASS = 9.1093897E-31L; // kg
// Electron mass in units
const double ELECTRON_MASS_U = 1.0 / 1822.8885020477; // u
// Proton mass
const double PROTON_MASS = 1.6726230E-27L; // kg
// Proton mass in units
const double PROTON_MASS_U = 1.0072764667710; // u
// Mass difference between Carbon-13 and Carbon-12 in units
const double C13C12_MASSDIFF_U = 1.0033548; // u
// Neutron mass
const double NEUTRON_MASS = 1.6749286E-27L; // kg
// Neutron mass in units
const double NEUTRON_MASS_U = 1.00866491566; // u
// Avogadro constant
const double AVOGADRO = 6.0221367E+23L; // 1 / mol
// Avogadro constant (alias)
const double NA = AVOGADRO;
// Avogadro constant (alias)
const double MOL = AVOGADRO;
// Boltzmann constant
const double BOLTZMANN = 1.380657E-23L; // J / K
// Boltzmann constant (alias)
const double k = BOLTZMANN;
// Planck constant
const double PLANCK = 6.6260754E-34L; // J * sec
// Planck constant (alias)
const double h = PLANCK;
// Gas constant (= NA * k)
const double GAS_CONSTANT = NA * k;
// Gas constant (alias)
const double R = GAS_CONSTANT;
// Faraday constant (= NA * e0)
const double FARADAY = NA * e0;
// Faraday constant (alias)
const double F = FARADAY;
// Bohr radius
const double BOHR_RADIUS = 5.29177249E-11L; // m
// Bohr radius (alias)
const double a0 = BOHR_RADIUS;
// the following values from:
// P.W.Atkins: Physical Chemistry, 5th ed., Oxford University Press, 1995
// Vacuum permittivity
const double VACUUM_PERMITTIVITY = 8.85419E-12L; // C^2 / (J * m)
// Vacuum permeability
const double VACUUM_PERMEABILITY = (4 * PI * 1E-7L); // J s^2 / (C^2 * m)
// Speed of light
const double SPEED_OF_LIGHT = 2.99792458E+8L; // m / s
// Speed of Light (alias)
const double c = SPEED_OF_LIGHT;
// Gravitational constant
const double GRAVITATIONAL_CONSTANT = 6.67259E-11L; // N m^2 / kg^2
// Fine structure constant
const double FINE_STRUCTURE_CONSTANT = 7.29735E-3L; // 1
// Degree per rad
const double DEG_PER_RAD = 57.2957795130823209L;
// Rad per degree
const double RAD_PER_DEG = 0.0174532925199432957L;
// mm per inch
const double MM_PER_INCH = 25.4L;
// m per foot
const double M_PER_FOOT = 3.048L;
// Joule per calorie
const double JOULE_PER_CAL = 4.184;
// Calories per Joule
const double CAL_PER_JOULE = (1 / 4.184);
}
}
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