A small operation of basic fuzzy logic functions in C++

fuzzylogic.c

/**
 @file fuzzylogic.c
 @ingroup mc2liveAlg

 hugh rawlinson - [email protected]
**/

#include <stdio.h>

double fuzzyOR(double a, double b){
    if(a>b){
        return a;
    } else{
        return b;
    }
}

double fuzzyAND(double a, double b){
    if(a<b){
        return a;
    } else{
        return b;
    }
}

double fuzzyNOT(double a){
    return 1.0 - a;
}

double fuzzyNOR(double a, double b){
    return fuzzyNOT(fuzzyOR(a,b));
}

double fuzzyNAND(double a, double b){
    return fuzzyNOT(fuzzyAND(a,b));
}

double fuzzyIMPLY(double a, double b){
    return fuzzyOR(fuzzyNOT(a),b);
}

double fuzzyXOR(double a, double b){
    double or = fuzzyOR(a,b);
    return fuzzyAND(or,fuzzyNOT(or));
}

double fuzzyEQUIV(double a, double b){
    return fuzzyNOT(fuzzyXOR(a,b));
}