Math.h File Reference
#include <boost/math/constants/constants.hpp>#include <boost/math/special_functions/sign.hpp>#include <boost/utility/enable_if.hpp>#include <boost/type_traits/is_arithmetic.hpp>#include <limits>#include <cmath>
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Namespaces | |
| namespace | shark |
| AbstractSingleObjectiveOptimizer. | |
Functions | |
| template<class T > | |
| T | shark::maxExpInput () |
| Maximum allowed input value for exp. More... | |
| template<class T > | |
| T | shark::minExpInput () |
| Minimum value for exp(x) allowed so that it is not 0. More... | |
| template<class T > | |
| boost::enable_if < boost::is_arithmetic< T >, T > ::type | shark::sqr (const T &x) |
| Calculates x^2. More... | |
| template<class T > | |
| T | shark::cube (const T &x) |
| Calculates x^3. More... | |
| template<class T > | |
| boost::enable_if < boost::is_arithmetic< T >, T > ::type | shark::sigmoid (T x) |
| Logistic function/logistic function. More... | |
| template<class T > | |
| T | shark::safeExp (T x) |
| Thresholded exp function, over- and underflow safe. More... | |
| template<class T > | |
| T | shark::safeLog (T x) |
| Thresholded log function, over- and underflow safe. More... | |
| template<class T > | |
| boost::enable_if < boost::is_arithmetic< T >, T > ::type | shark::softPlus (T x) |
| Numerically stable version of the function log(1+exp(x)). More... | |
| template<class T > | |
| T | shark::copySign (T x, T y) |
Variables | |
| static const double | shark::SQRT_2_PI = boost::math::constants::root_two_pi<double>() |
| Constant for sqrt( 2 * pi ). More... | |
Detailed Description
- This file serves as a minimal abstraction layer. Inclusion of this file makes some frequently used functions, constants, and header file inclusions OS-, compiler-, and version-independent.
- Copyright (c) 1998-2011:
- Institut für Neuroinformatik
Ruhr-Universität Bochum
D-44780 Bochum, Germany
Phone: +49-234-32-25558
Fax: +49-234-32-14209
eMail: shark-admin@neuroinformatik.ruhr-uni-bochum.de
www: http://www.neuroinformatik.ruhr-uni-bochum.de
This file is part of Shark. This library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this library; if not, see http://www.gnu.org/licenses/.
Definition in file Math.h.