Simbody 3.7
Constants.h
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1#ifndef SimTK_SimTKCOMMON_CONSTANTS_H_
2#define SimTK_SimTKCOMMON_CONSTANTS_H_
3
4/* -------------------------------------------------------------------------- *
5 * Simbody(tm): SimTKcommon *
6 * -------------------------------------------------------------------------- *
7 * This is part of the SimTK biosimulation toolkit originating from *
8 * Simbios, the NIH National Center for Physics-Based Simulation of *
9 * Biological Structures at Stanford, funded under the NIH Roadmap for *
10 * Medical Research, grant U54 GM072970. See https://simtk.org/home/simbody. *
11 * *
12 * Portions copyright (c) 2006-12 Stanford University and the Authors. *
13 * Authors: Michael Sherman *
14 * Contributors: *
15 * *
16 * Licensed under the Apache License, Version 2.0 (the "License"); you may *
17 * not use this file except in compliance with the License. You may obtain a *
18 * copy of the License at http://www.apache.org/licenses/LICENSE-2.0. *
19 * *
20 * Unless required by applicable law or agreed to in writing, software *
21 * distributed under the License is distributed on an "AS IS" BASIS, *
22 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
23 * See the License for the specific language governing permissions and *
24 * limitations under the License. *
25 * -------------------------------------------------------------------------- */
26
112 /**************************/
113 /* MATHEMATICAL CONSTANTS */
114 /**************************/
115
139#define SimTK_PI 3.141592653589793238462643383279502884197169399375105820974944592L
140
145#define SimTK_E 2.718281828459045235360287471352662497757247093699959574966967628L
146
152#define SimTK_LN2 6.931471805599453094172321214581765680755001343602552541206800095e-1L
153
159#define SimTK_LN10 2.302585092994045684017991454684364207601101488628772976033327901L
160
165#define SimTK_LOG2E 1.442695040888963407359924681001892137426645954152985934135449407L
166
171#define SimTK_LOG10E 4.342944819032518276511289189166050822943970058036665661144537832e-1L
172
177#define SimTK_SQRT2 1.414213562373095048801688724209698078569671875376948073176679738L
178
184#define SimTK_OOSQRT2 .7071067811865475244008443621048490392848359376884740365883398690L
185
190#define SimTK_CBRT2 1.259921049894873164767210607278228350570251464701507980081975112L
191
196#define SimTK_OOCBRT2 .7937005259840997373758528196361541301957466639499265049041428810L
197
202#define SimTK_SIXRT2 1.122462048309372981433533049679179516232411110613986753440409546L
203
208#define SimTK_OOSIXRT2 .8908987181403393047402262055905125079872126158781604033837569922L
209
214#define SimTK_SQRT3 1.732050807568877293527446341505872366942805253810380628055806979L
215
220#define SimTK_CBRT3 1.442249570307408382321638310780109588391869253499350577546416195L
221
222 /*end of Mathematical Constants*/
224
225 /**********************/
226 /* PHYSICAL CONSTANTS */
227 /**********************/
228
263#define SimTK_AVOGADROS_NUMBER 6.0221415e23L
264
279#define SimTK_MASS_OF_PROTON_IN_MD 1.00727646688L
280
287#define SimTK_MASS_OF_NEUTRON_IN_MD 1.00866491560L
288
295#define SimTK_MASS_OF_ELECTRON_IN_MD 5.4857990945e-4L
296
303#define SimTK_CHARGE_OF_PROTON_IN_SI 1.60217653e-19L
304
311#define SimTK_CHARGE_OF_PROTON_IN_MD 1.L
312
321#define SimTK_MOLAR_CHARGE_IN_SI 9.6485338e+4L
322
329#define SimTK_MOLAR_CHARGE_IN_MD SimTK_AVOGADROS_NUMBER
330
337#define SimTK_LIGHTSPEED_IN_SI 2.99792458e+8L
338
345#define SimTK_LIGHTSPEED_IN_MD 2.99792458e+5L
346
356#define SimTK_GRAVITATIONAL_CONSTANT_IN_SI 6.6742e-11L
357
370#define SimTK_GRAVITATIONAL_CONSTANT_IN_MD 1.10827e-34L
371
381#define SimTK_MAGNETIC_PERMEABILITY_IN_SI \
382 1.256637061435917295385057353311801153678867759750042328389977837e-6L
383
394#define SimTK_MAGNETIC_PERMEABILITY_IN_MD 1.94259179e-8L
395
402#define SimTK_ELECTRIC_PERMITTIVITY_IN_SI \
403 8.854187817620389850536563031710750260608370166599449808102417149e-12L /* approx of exact */
404
412#define SimTK_ELECTRIC_PERMITTIVITY_IN_MD 5.7276575e-4L
413
420#define SimTK_COULOMB_CONSTANT_IN_SI 8.9875517873681764e+9L
421
433#define SimTK_COULOMB_CONSTANT_IN_MD 1.38935456e+2L
434
442#define SimTK_COULOMB_CONSTANT_IN_KCAL_ANGSTROM 3.32063711e+2L
443
449#define SimTK_MOLAR_GAS_CONSTANT_SI 8.314472L
450
458#define SimTK_MOLAR_GAS_CONSTANT_MD 8.314472e-3L
459
467#define SimTK_MOLAR_GAS_CONSTANT_KCAL_ANGSTROM 1.9872065e-3L
468
474#define SimTK_BOLTZMANN_CONSTANT_SI 1.3806505e-23L
475
480#define SimTK_BOLTZMANN_CONSTANT_MD SimTK_MOLAR_GAS_CONSTANT_MD
481
486#define SimTK_BOLTZMANN_CONSTANT_KCAL_ANGSTROM SimTK_MOLAR_GAS_CONSTANT_KCAL_ANGSTROM
487 /*end of Physical Constants*/
489
490 /***************************/
491 /* UNIT CONVERSION FACTORS */
492 /***************************/
493
511#define SimTK_RADIAN_TO_DEGREE 5.729577951308232087679815481410517033240547246656432154916024386e+1L
512
519#define SimTK_DEGREE_TO_RADIAN 1.745329251994329576923690768488612713442871888541725456097191440e-2L
520
527#define SimTK_NS_TO_S 1e-9L
528
535#define SimTK_S_TO_NS 1e9L
536
543#define SimTK_KCAL_TO_KJOULE 4.184L /* exact */
544
551#define SimTK_KJOULE_TO_KCAL 2.390057361376673040152963671128107074569789674952198852772466539e-1L
552
559#define SimTK_DALTON_TO_GRAM 1.66053886e-24L
560
568#define SimTK_E_TO_COULOMB SimTK_CHARGE_OF_PROTON_IN_SI
569
577#define SimTK_EV_TO_JOULE SimTK_CHARGE_OF_PROTON_IN_SI
578 /*end of Unit Conversion Factors*/
580
581#endif /* SimTK_SimTKCOMMON_CONSTANTS_H_ */