///////////////////////////////////////////
public static void Test()
{
ExpressionCalculator calculator = new ExpressionCalculator();
calculator.RegisterBasicMathFunctions();
Dictionary <string, double> parameters = new Dictionary <string, double>();
parameters.Add("x", 10);
parameters.Add("Y", -3);
Dictionary <string, double> tests = new Dictionary <string, double>();
tests.Add("5 + 3 * 2", 11);
tests.Add("5 * 3 * 2", 30);
tests.Add("5 / 3 * 2", 3.333333333333333);
tests.Add("(5 + 3) * 2", 16);
tests.Add("- (5 +3)", -8);
tests.Add("(5 + 3) * -2", -16);
tests.Add("-3 + -4*(-4/2) + -3 + +3", 5);
tests.Add("(5 + 3) - (5 - 3)", 6);
tests.Add("x * (5 + y)", 20);
tests.Add("Sin(1)", 0.8414709848078965066525023216303);
tests.Add("2 + Sin(Cos(0))", 2.8414709848078965066525023216303);
tests.Add("3 + Cos(5 + x) * 2", 1.4806241742823574523037071927334);
tests.Add("Pow(2, 3)", 8);
tests.Add("Max( 3 + x, 4 + x)", 14);
tests.Add("4 + Pow( 4,5) * 4", 4100);
tests.Add("Pow( x + 10,2)", 400);
tests.Add("4 + Pow( x + 10,2) * 4", 1604);
tests.Add("4 + Pow( (x + 10) * 2 - Pow(2,2), 2) * 4", 5188);
tests.Add("4 + Pow( (x + 10) * 2 + Pow(Pow(2 *2, 2),2), Cos(0) + 1) * 4", 350468);
string s = "";
foreach (KeyValuePair <string, double> test in tests)
{
string expresssion = test.Key;
double trueResult = test.Value;
double returnValue;
string error;
bool success = calculator.Calculate(expresssion, parameters, out returnValue, out error);
string resultStr;
if (success)
{
if (Math.Abs(returnValue - trueResult) > .000001)
{
resultStr = "INVALID RESULT";
}
else
{
resultStr = returnValue.ToString();
}
}
else
{
resultStr = "ERROR: " + error;
}
s += string.Format("\"{0}\" = {1}\n", expresssion, resultStr);
}
Log.Fatal("ExpressionCalculator: Test: \n" + s);
}
//
internal PreparedExpression(ExpressionCalculator calculator, object postfix) // List<Symbol> postfix )
{
this.calculator = calculator;
this.postfix = (List <Symbol>)postfix;
}
