private void SubmitButtonClick(object sender, RoutedEventArgs e)
{
LPParser parser = new LPParser();
if (parser.SetObjectiveFunction(ObjectiveFunctionEntry.Text))
{
bool constraintsValid = true;
foreach (string constraint in ConstraintEntry.Text.Split('\n'))
{
constraintsValid &= parser.AddConstraint(constraint);
}
if (constraintsValid)
{
LPSolution solution = new Simplex(parser.LinearProgram).Solve();
ResultsLabel.Content = $"Final Tableau:\n{ solution.FinalTableau.ToString() }\n\nResults:\n{ string.Join(", ", solution.Results.ToList()) }\nMaximum = { solution.Maximum }";
}
else
{
ResultsLabel.Content = "Syntax error in constraint.";
}
}
else
{
ResultsLabel.Content = "Syntax error in objective function.";
}
}
static void Main(string[] args)
{
LinearProgram[] linearProgrammes = new LinearProgram[6];
LPParser parser = new LPParser();
parser.SetObjectiveFunction("8x + 10y + 7z");
parser.AddConstraint("x + 3y + 2z < 10");
parser.AddConstraint("x + 5y + z < 8");
linearProgrammes[0] = parser.LinearProgram;
parser = new LPParser();
parser.SetObjectiveFunction("x + 2y - z");
parser.AddConstraint("2x + y + z < 14");
parser.AddConstraint("4x + 2y + 3z < 28");
parser.AddConstraint("2x + 5y + 5z < 30");
linearProgrammes[1] = parser.LinearProgram;
parser = new LPParser();
parser.SetObjectiveFunction("3x + 4y");
parser.AddConstraint("x + y < 4");
parser.AddConstraint("2x + y < 5");
linearProgrammes[2] = parser.LinearProgram;
parser = new LPParser();
parser.SetObjectiveFunction("-2x + y");
parser.AddConstraint("x + 2y < 6");
parser.AddConstraint("3x + 2y < 12");
linearProgrammes[3] = parser.LinearProgram;
parser = new LPParser();
parser.SetObjectiveFunction("2x + 3y");
parser.AddConstraint("x + y < 2000");
parser.AddConstraint("8x + 14y < 20000");
linearProgrammes[4] = parser.LinearProgram;
parser = new LPParser();
parser.SetObjectiveFunction("x + 0.8y");
parser.AddConstraint("x + y < 1000");
parser.AddConstraint("2x + y < 1500");
parser.AddConstraint("3x + 2y < 2400");
linearProgrammes[5] = parser.LinearProgram;
for (int i = 0; i < linearProgrammes.Length; i++)
{
Console.WriteLine("----------------------------------");
Console.WriteLine($"LP { i + 1 }");
linearProgrammes[i].Output();
Console.WriteLine();
Console.WriteLine("Solution:");
new Simplex(linearProgrammes[i]).Solve().Output();
}
Console.WriteLine("----------------------------------");
Console.ReadKey();
}
