54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
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//Copyright (C) 2013 Steve Taylor (steve98654@gmail.com), Davis E. King
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//License: Boost Software License. See LICENSE.txt for full license.
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#ifndef DLIB_NUMERIC_CONSTANTs_H_
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#define DLIB_NUMERIC_CONSTANTs_H_
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namespace dlib
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{
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// pi -- Pi
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const double pi = 3.1415926535897932385;
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// e -- Euler's Constant
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const double e = 2.7182818284590452354;
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// sqrt_2 -- The square root of 2
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const double sqrt_2 = 1.4142135623730950488;
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// sqrt_3 -- The square root of 3
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const double sqrt_3 = 1.7320508075688772935;
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// log10_2 -- The logarithm base 10 of two
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const double log10_2 = 0.30102999566398119521;
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// light_spd -- The speed of light in vacuum in meters per second
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const double light_spd = 2.99792458e8;
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// newton_G -- Newton's gravitational constant (in metric units of m^3/(kg*s^2))
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const double newton_G = 6.67384e-11;
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// planck_cst -- Planck's constant (in units of Joules * seconds)
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const double planck_cst = 6.62606957e-34;
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// golden_ratio -- The Golden Ratio
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const double golden_ratio = 1.6180339887498948482;
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// euler_gamma -- The Euler Mascheroni Constant
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const double euler_gamma = 0.5772156649015328606065;
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// catalan -- Catalan's Constant
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const double catalan = 0.91596559417721901505;
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// glaisher -- Glaisher Kinkelin constant
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const double glaisher = 1.2824271291006226369;
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// khinchin -- Khinchin's constant
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const double khinchin = 2.6854520010653064453;
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// apery -- Apery's constant
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const double apery = 1.2020569031595942854;
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}
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#endif //DLIB_NUMERIC_CONSTANTs_H_
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