private static void DoWork(string equation)
{
try {
var rpn = RPNParser.Parse(equation);
Console.WriteLine();
Console.WriteLine("Parsed : " + string.Join("", rpn.Output.Select(o => o.Value)));
if (rpn.Variables.Any())
{
var expr = ExpressionBuilder.BuildFlat(rpn.Output);
Console.WriteLine("Equation : " + expr.ToString());
Console.WriteLine("Result : " + expr.Execute().ToString());
}
else
{
var expr = ExpressionBuilder.Build(rpn.Output);
var exprf = ExpressionBuilder.BuildFlat(rpn.Output);
Console.WriteLine("Equation r: " + expr.ToString());
Console.WriteLine("Result r: " + expr.Execute().Count.AsString());
Console.WriteLine("Equation f: " + exprf.ToString());
Console.WriteLine("Result f: " + exprf.Execute().Count.AsString());
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
public void Parse_e_Sin()
{
//Arrange
var text = "Sin(e)";
var expected = Constants.e + " sin";
//Act
var rpn = RPNParser.Parse(text);
//Assert
Assert.IsTrue(RPNComparer.Compare(rpn.Output, expected));
}
public void Parse_EM()
{
//Arrange
var text = "em";
var expected = Constants.EM.ToString();
//Act
var rpn = RPNParser.Parse(text);
//Assert
Assert.IsTrue(RPNComparer.Compare(rpn.Output, expected));
}
public void Parse_X_WithNumbers()
{
//Arrange
var text = "2*x+1";
var expected = "2x*1+";
//Act
var rpn = RPNParser.Parse(text);
//Assert
Assert.IsTrue(RPNComparer.Compare(rpn.Output, expected));
}
public void Parse_Parenthesis()
{
//Arrange
var text = "(3 + x)-2";
var expected = "3 x + 2 -";
//Act
var rpn = RPNParser.Parse(text);
//Assert
Assert.IsTrue(RPNComparer.Compare(rpn.Output, expected));
}
public void Parse_Number_Subtract_X()
{
//Arrange
var text = "1-x";
var expected = "1x-";
//Act
var rpn = RPNParser.Parse(text);
//Assert
Assert.IsTrue(RPNComparer.Compare(rpn.Output, expected));
}
public void AddThenMultiplyThenPower()
{
//Arrange
var text = "2 + 3 * 4 ^ 1";
var output = " 2 3 4 1 ^ * +";
//Act
var rpn = RPNParser.Parse(text);
//Assert
Assert.IsTrue(RPNComparer.Compare(rpn.Output, output));
}
public void Parse_X_InVariables()
{
//Arrange
var text = "x+1";
//Act
var rpn = RPNParser.Parse(text);
//Assert
Assert.IsTrue(rpn.Variables.Count == 1);
Assert.IsTrue(rpn.Variables.Contains("x"));
}
public void Add_TwoFloatingNumbers()
{
//Arrange
var text = 12.5.ToString() + "+" + 13.5.ToString();
var expected = 12.5.ToString() + 13.5.ToString() + "+";
//Act
var rpn = RPNParser.Parse(text);
//Assert
Assert.IsTrue(RPNComparer.Compare(rpn.Output, expected));
}
public void Add_TwoTwoDigitIntegers()
{
//Arrange
var text = "12 + 13";
var expected = " 12 13 +";
//Act
var rpn = RPNParser.Parse(text);
//Assert
Assert.IsTrue(RPNComparer.Compare(rpn.Output, expected));
}
public void CreatesFlatExpression()
{
//Arrange
var text = "2 * x * y";
//Act
var rpn = RPNParser.Parse(text);
var actual = ExpressionBuilder.BuildFlat(rpn.Output).Execute();
//Assert
Assert.IsTrue(actual is FlatMultExpression);
}
public void ParseTest8()
{
// Arrange
var mathParser = new RPNParser();
var input = "-5*(+5)+5*(-3)-5*(+5)-5*(-3)";
var output = -50d;
// Act
var actual = mathParser.Parse(input);
// Assert
Assert.AreEqual(output, actual);
}
public void ParseTest7()
{
// Arrange
var mathParser = new RPNParser();
var input = "5*5+5*3-5*5-5*3";
var output = 0d;
// Act
var actual = mathParser.Parse(input);
// Assert
Assert.AreEqual(output, actual);
}
public void MultiplyDecimals()
{
//Arrange
var text = 4.0m.ToString() + "*" + 2.5m.ToString();
var expected = 10;
//Act
var rpn = RPNParser.Parse(text);
var actual = ExpressionBuilder.Build(rpn.Output).Execute().Count.Re.ToNumber();
//Assert
Assert.AreEqual(expected, actual);
}
public void AllOperatorsAndFunctions()
{
//Arrange
var text = "Sin((4- 6 * -2 )^1/(2 + 2)^(1/2))";
var expected = (decimal)Math.Sin(8);
//Act
var rpn = RPNParser.Parse(text);
var actual = ExpressionBuilder.BuildFlat(rpn.Output).Execute().Count.Re.ToNumber();
//Assert
Assert.AreEqual(expected, actual);
}
public void ChangeWhenMultiplyingAndPower()
{
//Arrange
var text = "3*-2^2";
var expected = -12;
//Act
var rpn = RPNParser.Parse(text);
var actual = ExpressionBuilder.BuildFlat(rpn.Output).Execute().Count.Re.ToNumber();
//Assert
Assert.AreEqual(expected, actual);
}
public void Constant_phi()
{
//Arrange
var text = "phi";
var expected = (decimal)(Constants.Phi);
//Act
var rpn = RPNParser.Parse(text);
var actual = ExpressionBuilder.Build(rpn.Output).Execute().Count.Re.ToNumber();
//Assert
Assert.AreEqual(expected, actual);
}
public void ParseTest16()
{
// Arrange
var mathParser = new RPNParser();
var input = "-1*(-(+(5*(+5)+5*(+3)-5*(+5)-5*(-3))))";
var output = 30D;
// Act
var actual = mathParser.Parse(input);
// Assert
Assert.AreEqual(output, actual);
}
public void ParseTest14()
{
// Arrange
var mathParser = new RPNParser();
var input = "ctg(tg(cos(sin(100))))";
var output = 0.39311779109637159D;
// Act
var actual = mathParser.Parse(input);
// Assert
Assert.AreEqual(output, actual);
}
public void ParseTest11()
{
// Arrange
var mathParser = new RPNParser();
var input = "(-1)^2";
var output = 1d;
// Act
var actual = mathParser.Parse(input);
// Assert
Assert.AreEqual(output, actual);
}
public void ParseTest12()
{
// Arrange
var mathParser = new RPNParser();
var input = "pi*1+e*2+.95";
var output = 9.5281563105078888d;
// Act
var actual = mathParser.Parse(input);
// Assert
Assert.AreEqual(output, actual);
}
public void Parse_RecognizesImaginary()
{
//Arrange
var text = "1 + i";
var expected = "1i+";
//Act
var rpn = RPNParser.Parse(text);
//Assert
Assert.IsTrue(RPNComparer.Compare(rpn.Output, expected));
Assert.IsTrue(rpn.Output[1].Type == SymbolTypes.Imaginary);
}
public void ParseTest15()
{
// Arrange
var mathParser = new RPNParser();
var input = "abs(-2)+exp(1)+(2)Log(4)+√(4)";
var output = 2 + Math.E + 2 + 2;
// Act
var actual = mathParser.Parse(input);
// Assert
Assert.AreEqual(output, actual);
}
public void AddIntegers()
{
//Arrange
var text = "2+2";
var expected = 4;
//Act
var rpn = RPNParser.Parse(text);
var actual = ExpressionBuilder.Build(rpn.Output).Execute().Count.Re.ToNumber();
//Assert
Assert.AreEqual(expected, actual);
}
public void ParseTest6()
{
// Arrange
var mathParser = new RPNParser();
var input = "2^2+4";
var output = 8d;
// Act
var actual = mathParser.Parse(input);
// Assert
Assert.AreEqual(output, actual);
}
public void AddDecimals()
{
//Arrange
var text = 2.2m.ToString() + "+" + 4.3m.ToString();
var expected = 6.5;
//Act
var rpn = RPNParser.Parse(text);
var actual = ExpressionBuilder.Build(rpn.Output).Execute().Count.Re.ToNumber();
//Assert
Assert.AreEqual(expected, actual);
}
public void ChangeWhenSubtracting()
{
//Arrange
var text = "12--6";
var expected = 18;
//Act
var rpn = RPNParser.Parse(text);
var actual = ExpressionBuilder.BuildFlat(rpn.Output).Execute().Count.Re.ToNumber();
//Assert
Assert.AreEqual(expected, actual);
}
public void AllOperators()
{
//Arrange
var text = "(4- 6 * -2 )^1/(2 + 2)^(1/2)";
var expected = 8;
//Act
var rpn = RPNParser.Parse(text);
var actual = ExpressionBuilder.Build(rpn.Output).Execute().Count.Re.ToNumber();
//Assert
Assert.AreEqual(expected, actual);
}
public void ChangeInPower()
{
//Arrange
var text = "4^(-2)";
var expected = 0.0625;
//Act
var rpn = RPNParser.Parse(text);
var actual = ExpressionBuilder.BuildFlat(rpn.Output).Execute().Count.Re.ToNumber();
//Assert
Assert.AreEqual(expected, actual);
}
public void Divide_x_by_x()
{
//Arrange
var text = "x/x";
var expected = RPNParser.Parse("1");
//Act
var rpn = RPNParser.Parse(text);
var actual = RPNParser.Parse(ExpressionBuilder.BuildFlat(rpn.Output).Execute().ToString());
//Assert
Assert.IsTrue(RPNComparer.Compare(expected.Output, actual.Output));
}