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1 /* -*- C++ -*- |
1 /* -*- mode: C++; indent-tabs-mode: nil; -*- |
2 * |
2 * |
3 * This file is a part of LEMON, a generic C++ optimization library |
3 * This file is a part of LEMON, a generic C++ optimization library. |
4 * |
4 * |
5 * Copyright (C) 2003-2008 |
5 * Copyright (C) 2003-2008 |
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
7 * (Egervary Research Group on Combinatorial Optimization, EGRES). |
7 * (Egervary Research Group on Combinatorial Optimization, EGRES). |
8 * |
8 * |
31 |
31 |
32 namespace lemon { |
32 namespace lemon { |
33 |
33 |
34 /// \addtogroup misc |
34 /// \addtogroup misc |
35 /// @{ |
35 /// @{ |
36 |
36 |
37 /// The Euler constant |
37 /// The Euler constant |
38 const long double E = 2.7182818284590452353602874713526625L; |
38 const long double E = 2.7182818284590452353602874713526625L; |
39 /// log_2(e) |
39 /// log_2(e) |
40 const long double LOG2E = 1.4426950408889634073599246810018921L; |
40 const long double LOG2E = 1.4426950408889634073599246810018921L; |
41 /// log_10(e) |
41 /// log_10(e) |
52 const long double PI_4 = 0.7853981633974483096156608458198757L; |
52 const long double PI_4 = 0.7853981633974483096156608458198757L; |
53 /// sqrt(2) |
53 /// sqrt(2) |
54 const long double SQRT2 = 1.4142135623730950488016887242096981L; |
54 const long double SQRT2 = 1.4142135623730950488016887242096981L; |
55 /// 1/sqrt(2) |
55 /// 1/sqrt(2) |
56 const long double SQRT1_2 = 0.7071067811865475244008443621048490L; |
56 const long double SQRT1_2 = 0.7071067811865475244008443621048490L; |
57 |
57 |
58 |
58 |
59 /// @} |
59 /// @} |
60 |
60 |
61 } //namespace lemon |
61 } //namespace lemon |
62 |
62 |