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/*
fuzzylite (R), a fuzzy logic control library in C++.
Copyright (C) 2010-2017 FuzzyLite Limited. All rights reserved.
Author: Juan Rada-Vilela, Ph.D. <jcrada@fuzzylite.com>
This file is part of fuzzylite.
fuzzylite is free software: you can redistribute it and/or modify it under
the terms of the FuzzyLite License included with the software.
You should have received a copy of the FuzzyLite License along with
fuzzylite. If not, see <http://www.fuzzylite.com/license/>.
fuzzylite is a registered trademark of FuzzyLite Limited.
*/
#ifndef FL_EXTREMELY_H
#define FL_EXTREMELY_H
#include "fl/hedge/Hedge.h"
namespace fl {
/**
The Extremely class is a Hedge located fifth in the ordered set
(Not, Seldom, Somewhat, Very, Extremely, Any).
@author Juan Rada-Vilela, Ph.D.
@see Hedge
@see HedgeFactory
@since 4.0
*/
class FL_API Extremely FL_IFINAL : public Hedge {
public:
std::string name() const FL_IOVERRIDE;
Complexity complexity() const FL_IOVERRIDE;
/**
Computes the hedge for the membership function value @f$x@f$
@param x is a membership function value
@return @f$
\begin{cases}
2x^2 & \mbox{if $x \le 0.5$} \cr
1-2(1-x)^2 & \mbox{otherwise} \cr
\end{cases}@f$
*/
scalar hedge(scalar x) const FL_IOVERRIDE;
Extremely* clone() const FL_IOVERRIDE;
static Hedge* constructor();
};
}
#endif /* FL_EXTREMELY_H */
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