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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_EINSTEINPRODUCT_H
#define FL_EINSTEINPRODUCT_H
#include "fl/norm/TNorm.h"
namespace fl {
/**
The EinsteinProduct class is a TNorm that computes the Einstein product
of any two values.
@author Juan Rada-Vilela, Ph.D.
@see EinsteinSum
@see TNorm
@see TNormFactory
@see Norm
@since 4.0
*/
class FL_API EinsteinProduct FL_IFINAL : public TNorm {
public:
std::string className() const FL_IOVERRIDE;
Complexity complexity() const FL_IOVERRIDE;
/**
Computes the Einstein product of two membership function values
@param a is a membership function value
@param b is a membership function value
@return @f$(a\times b)/(2-(a+b-a\times b))@f$
*/
scalar compute(scalar a, scalar b) const FL_IOVERRIDE;
EinsteinProduct* clone() const FL_IOVERRIDE;
static TNorm* constructor();
};
}
#endif /* FL_EINSTEINPRODUCT_H */
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