//+------------------------------------------------------------------+
 //|                                  CompositeMembershipFunction.mq5 |
 //|                         Copyright 2000-2024, MetaQuotes Ltd. |
 //|                                             https://www.mql5.com |
 //+------------------------------------------------------------------+
 #include <Math\Fuzzy\membershipfunction.mqh>
 #include <Graphics\Graphic.mqh>
 //--- Create membership functions
 CProductTwoSigmoidalMembershipFunctions func1(2,1,-1,7);
 CP_ShapedMembershipFunction func2(0,6,7,9);
 CCompositeMembershipFunction composite(ProdMF,GetPointer(func1),GetPointer(func2));
 //--- Create wrappers for membership functions
 double ProductTwoSigmoidalMembershipFunctions(double x) { return(func1.GetValue(x)); }
 double P_ShapedMembershipFunction(double x) { return(func2.GetValue(x)); }
 double CompositeMembershipFunction(double x) { return(composite.GetValue(x)); }
 //+------------------------------------------------------------------+
 //| Script program start function                                    |
 //+------------------------------------------------------------------+
 void OnStart()
   {
 //--- create graphic
    CGraphic graphic;
    if(!graphic.Create(0,"CompositeMembershipFunction",0,30,30,780,380))
      {
       graphic.Attach(0,"CompositeMembershipFunction");
      }
    graphic.HistoryNameWidth(70);
    graphic.BackgroundMain("CompositeMembershipFunction");
    graphic.BackgroundMainSize(16);
 //--- create curve
    graphic.CurveAdd(P_ShapedMembershipFunction,0.0,10.0,0.1,CURVE_LINES,"Func1");
    graphic.CurveAdd(ProductTwoSigmoidalMembershipFunctions,0.0,10.0,0.1,CURVE_LINES,"Func2");
    graphic.CurveAdd(CompositeMembershipFunction,0.0,10.0,0.1,CURVE_LINES,"Func1 * Func2");
 //--- sets the X-axis properties
    graphic.XAxis().AutoScale(false);
    graphic.XAxis().Min(0.0);
    graphic.XAxis().Max(10.0);
    graphic.XAxis().DefaultStep(1.0);
 //--- sets the Y-axis properties
    graphic.YAxis().AutoScale(false);
    graphic.YAxis().Min(0.0);
    graphic.YAxis().Max(1.1);
    graphic.YAxis().DefaultStep(0.2);
 //--- plot
    graphic.CurvePlotAll();
    graphic.Update();
   } 
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