private static void Main(string[] args)
{
// The caching mechanism for saving any user defined constants or functions.
MathSolverLibrary.Information_Helpers.FuncDefHelper funcDefHelper = new MathSolverLibrary.Information_Helpers.FuncDefHelper();
// Display some messages to the user.
ConsoleHelper.SetConsoleWindow();
ConsoleHelper.DisplayHelpScreen();
// Initialize the math solving engine.
MathSolver.Init();
for (; ;)
{
// Poll user input.
Console.ForegroundColor = ConsoleColor.Magenta;
Console.Write(">");
Console.ResetColor();
string inputStr = Console.ReadLine();
// Check if the user wants to quit the program.
if (inputStr == "quit")
{
break;
}
if (ProcessSpecialCommand(inputStr))
{
continue;
}
// The temporary data necessary for the math evaluation engine.
// Necessary in the parsing stage to determine the context and meaning of the expression.
MathSolverLibrary.TermType.EvalData evalData = new MathSolverLibrary.TermType.EvalData(_useRad, new WorkMgr(), funcDefHelper);
var termEval = ParseInput(inputStr, ref funcDefHelper, ref evalData);
// Display the possible methods of evaluation to the user.
Console.WriteLine("Input desired evaluation option:");
for (int i = 0; i < termEval.GetCmdCount(); ++i)
{
Console.WriteLine(" " + (i + 1).ToString() + ")" + termEval.GetCommands()[i]);
}
// Get the command the user wants to evaluate.
Console.ForegroundColor = ConsoleColor.Magenta;
Console.Write(">");
Console.ResetColor();
string optionStr = Console.ReadLine();
int optionIndex;
if (!int.TryParse(optionStr, out optionIndex))
{
return;
}
MathSolverLibrary.Equation.SolveResult solveResult = EvaluateTerm(termEval, optionIndex, ref evalData);
ConsoleHelper.UserFriendlyDisplay(solveResult, evalData);
}
}
private static MathSolverLibrary.TermType.GenTermType ParseInput(string input, ref MathSolverLibrary.Information_Helpers.FuncDefHelper funcDefHelper, ref MathSolverLibrary.TermType.EvalData evalData)
{
Stopwatch stopwatch = new Stopwatch();
// Start timing how long the parsing process takes.
stopwatch.Start();
// Will contain the list of parsing errors if any.
List <string> parseErrors = new List <string>();
// Parse the input using the math parsing engine.
var termEval = MathSolver.ParseInput(input, ref evalData, ref parseErrors);
// Stop the timing.
stopwatch.Stop();
if (termEval == null)
{
// The user's input was invalid.
ConsoleHelper.WriteLineColor(ConsoleColor.Red, "Cannot interpret.");
return(null);
}
ConsoleHelper.WriteLineColor(ConsoleColor.DarkCyan, "Parsing took " + stopwatch.ElapsedMilliseconds.ToString() + "ms");
return(termEval);
}
public static void Test()
{
// Initialize the math solving engine.
MathSolver.Init();
EvalData evalData = ConstructEvalData();
// Object deriving from ExComp representing a algebraic variable.
AlgebraComp x = new AlgebraComp("x");
ExComp complexExpression = ConstructEx("3x^2 - 3", evalData);
ExComp combined = AddOp.StaticCombine(x, complexExpression);
// Square the expression.
ExComp squared = PowOp.RaiseToPower(complexExpression, new ExNumber(2.0), ref evalData, false);
// String containing the evaluated result.
string result = squared.ToAlgTerm().FinalToDispStr();
ExComp left = ConstructEx(¨ln(x - 2) ¨, evalData);
ExComp right = ConstructEx(¨3¨, evalData);
// The object containing the functionality used to solve algebraic equations.
AlgebraSolver agSolver = new AlgebraSolver();
// Any additional information regarding the result will be stored in the evalData object.
ExComp solveResult = agSolver.SolveEq(left, right, new AlgebraVar(¨x¨), evalData);
}
public async Task <ActionResult <MathHistory> > Create(MathHistory mathHistory)
{
// Runs equation through SolveMath to return an answer
mathHistory.Answer = MathSolver.SolveMath(mathHistory.Equation);
_context.MathHistories.Add(mathHistory);
await _context.SaveChangesAsync();
return(CreatedAtAction(nameof(GetById), new { id = mathHistory.Id }, mathHistory));
}
public void Construct_MathSolver_ShouldNotBeNull()
{
//---------------Set up test pack-------------------
//---------------Assert Precondition----------------
//---------------Execute Test ----------------------
var mathSolver = new MathSolver();
//---------------Test Result -----------------------
Assert.IsNotNull(mathSolver);
}
static void Main(string[] args)
{
var mathSolver = new MathSolver();
var lines = Convert.ToInt32(System.Console.ReadLine());
for (int i = 0; i < lines; i++)
{
var numberLine = System.Console.ReadLine();
var result = mathSolver.Solve(new FindThePointProblem(numberLine));
System.Console.WriteLine(result);
}
}
public void FindThePointProblem_Given1122_ShouldReturn33()
{
//---------------Set up test pack-------------------
var mathSolver = new MathSolver();
var findThePointProblem = new FindThePointProblem("1 1 2 2");
//---------------Assert Precondition----------------
//---------------Execute Test ----------------------
var result = mathSolver.Solve(findThePointProblem);
//---------------Test Result -----------------------
Assert.AreEqual("3 3", result);
}
public string Compute()
{
MathSolver _solverSvc = new MathSolver();
var result = _solverSvc.Solve(Request.Query["expr"]);
if (String.IsNullOrEmpty(result.Error))
{
return(result.Value.ToString());
}
else
{
return(result.Error);
}
}
public static void DisplayUserFriendlySols(List <MathSolverLibrary.Equation.Solution> solutions)
{
if (solutions.Count > 0)
{
Console.WriteLine();
WriteLineColor(ConsoleColor.DarkYellow, "Solutions:");
}
foreach (var sol in solutions)
{
Console.WriteLine();
string starterStr = "";
if (sol.SolveFor != null)
{
starterStr += sol.SolveForToTexStr() + " " + sol.ComparisonOpToTexStr() + " ";
}
string outputStr;
if (sol.Result != null)
{
Console.WriteLine("Result:");
outputStr = starterStr + sol.ResultToTexStr();
outputStr = MathSolver.FinalizeOutput(outputStr);
Console.WriteLine(" " + outputStr);
if (sol.Multiplicity != 1)
{
Console.WriteLine(" " + "Multiplicity of " + sol.Multiplicity.ToString() + ".");
}
}
if (sol.GeneralResult != null)
{
Console.WriteLine("General Result:");
outputStr = starterStr + sol.GeneralToTexStr();
outputStr = MathSolver.FinalizeOutput(outputStr);
Console.WriteLine(" " + outputStr);
Console.WriteLine(" Where " + sol.GeneralResult.IterVarToTexString() + " is a real integer.");
}
if (sol.ApproximateResult != null)
{
Console.WriteLine("Approximate Result:");
outputStr = starterStr + sol.ApproximateToTexStr();
outputStr = MathSolver.FinalizeOutput(outputStr);
Console.WriteLine(" " + outputStr);
}
}
Console.WriteLine();
}
public static void UserFriendlyDisplay(MathSolverLibrary.Equation.SolveResult result, MathSolverLibrary.TermType.EvalData evalData)
{
if (evalData.GetMsgs() != null)
{
foreach (string msg in evalData.GetMsgs())
{
WriteLineColor(ConsoleColor.DarkYellow, " " + msg);
}
}
if (evalData.GetInputTypeStr() != null)
{
WriteLineColor(ConsoleColor.DarkGreen, "Topic is " + evalData.GetInputTypeStr());
}
if (evalData.GetGraphEqStrs() != null)
{
string finalGraphStr = "";
for (int i = 0; i < evalData.GetGraphEqStrs().Length; ++i)
{
finalGraphStr += evalData.GetGraphEqStrs()[i];
if (i != evalData.GetGraphEqStrs().Length - 1)
{
finalGraphStr += "; ";
}
}
WriteLineColor(ConsoleColor.White, "Graph " + finalGraphStr);
}
if (!result.Success)
{
WriteLineColor(ConsoleColor.DarkRed, "Failure");
foreach (string msg in evalData.GetFailureMsgs())
{
WriteLineColor(ConsoleColor.Red, " " + msg);
}
}
else
{
if (result.Solutions == null)
{
return;
}
int solCount = result.Solutions.Count;
if (evalData.GetHasPartialSolutions())
{
Console.WriteLine("The input was partially evaluated to...");
for (int i = 0; i < evalData.GetPartialSolutions().Count; ++i)
{
string partialSolStr = evalData.PartialSolToTexStr(i);
partialSolStr = MathSolver.FinalizeOutput(partialSolStr);
Console.WriteLine(" " + partialSolStr);
}
Console.WriteLine();
if (solCount > 0)
{
string pluralStr = solCount > 1 ? "s were" : " was";
Console.WriteLine("The following " + solCount.ToString() + " solution" + pluralStr +
" also obtained...");
DisplayUserFriendlySols(result.Solutions);
}
}
else
{
Console.WriteLine("The input was successfully evaluated.");
if (solCount > 0)
{
DisplayUserFriendlySols(result.Solutions);
}
if (result.GetHasRestrictions())
{
DisplayUserFreindlyRests(result.Restrictions);
}
}
}
}
public void TestQ1()
{
var res = MathSolver.Q1();
Console.WriteLine("{0}, {1}", res.Item1, res.Item2);
}
