LinguisticVariable water = new LinguisticVariable(“Water”);
water.MembershipFunctionCollection.Add(new MembershipFunction(“Cold”, 0, 0, 20, 40));
water.MembershipFunctionCollection.Add(new MembershipFunction(“Tepid”, 30, 50, 50, 70));
water.MembershipFunctionCollection.Add(new MembershipFunction(“Hot”, 50, 80, 100, 100)); 

LinguisticVariable power = new LinguisticVariable(“Power”);
power.MembershipFunctionCollection.Add(new MembershipFunction(“Low”, 0, 25, 25, 50));
power.MembershipFunctionCollection.Add(new MembershipFunction(“High”, 25, 50, 50, 75));

FuzzyEngine fuzzyEngine = new FuzzyEngine();
fuzzyEngine.LinguisticVariableCollection.Add(water);
fuzzyEngine.LinguisticVariableCollection.Add(power);
fuzzyEngine.Consequent = “Power”;
fuzzyEngine.FuzzyRuleCollection.Add(new FuzzyRule(“IF (Water IS Cold) OR (Water IS Tepid) THEN Power IS High”));
fuzzyEngine.FuzzyRuleCollection.Add(new FuzzyRule(“IF (Water IS Hot) THEN Power IS Low”));

water.InputValue = 60;

try
{
    MessageBox.Show(fuzzyEngine.Defuzzify().ToString());
}
catch (Exception e)
{
    MessageBox.Show(e.Message);
}