internal void OutputResultsToFile(TextWriter w, LinearSystem system, List <double> results, List <double> r) //method to output final results to a file
{
w.WriteLine("System: ");
LinearSystemOperator.FileOutput(system, w);
w.WriteLine("Results: ");
for (int i = 0; i < system.NumberOfUnknowns; i++)
{
w.WriteLine($"x{i + 1} = {results[i]}; ");
}
w.WriteLine("Error: ");
for (int i = 0; i < system.NumberOfUnknowns; i++)
{
w.WriteLine($"Error for x{i + 1} = {r[i]}");
}
}
public static void RunMenu()
{
uint key;
try
{
Console.WriteLine("Hello! This program is designed as a calculator for linear system. This program uses direct methods such as Gauss and Cramer's method." +
"To start using this program you have to enter linear system of equations. Please follow instractions!");
LinearSystem system = LinearSystemOperator.Read();
do
{
Console.WriteLine("Press 1 to show linear system.");
Console.WriteLine("Press 2 to find results using Gauss Method with main element");
Console.WriteLine("Press 3 to find results using Gauss Method with unit diagonal");
Console.WriteLine("Press 4 to find results using Cramer's Method");
Console.WriteLine("Press 5 to enter new linear system");
Console.WriteLine("Press 0 to exit program");
Console.WriteLine("Enter key: ");
key = Convert.ToUInt32(Console.ReadLine());
switch (key)
{
case 1:
{
LinearSystemOperator.Show(system);
break;
}
case 2:
{
LinearSystemOperator.Show(system);
MainElementGaussMethod gaussMethod = new MainElementGaussMethod();
List <double> results = gaussMethod.FinalCalculations(system);
if (results != null)
{
List <double> error = gaussMethod.R(system, results);
Console.WriteLine("Please, enter 1 if you want to save results to file, press enter to go back to menu: ");
if (Int32.TryParse(Console.ReadLine(), out int saveKey) && saveKey == 1)
{
Console.WriteLine("Please, enter name of file: ");
string fileName = Console.ReadLine();
using (StreamWriter w = new StreamWriter(fileName))
{
gaussMethod.OutputResultsToFile(w, system, results, error);
}
}
}
break;
}
case 3:
{
LinearSystemOperator.Show(system);
var gaussMethod = new UnitDiagonalGaussMethod();
List <double> results = gaussMethod.FinalCalculations(system);
if (results != null)
{
List <double> error = gaussMethod.R(system, results);
Console.WriteLine("Please, enter 1 if you want to save results to file, press enter to go back to menu: ");
if (Int32.TryParse(Console.ReadLine(), out int saveKey) && saveKey == 1)
{
Console.WriteLine("Please, enter name of file: ");
string fileName = Console.ReadLine();
using (StreamWriter w = new StreamWriter(fileName))
{
gaussMethod.OutputResultsToFile(w, system, results, error);
}
}
}
break;
}
case 4:
{
LinearSystemOperator.Show(system);
var method = new CramersMethod();
List <double> results = method.FinalCalculations(system);
if (results != null)
{
List <double> error = method.R(system, results);
Console.WriteLine("Please, enter 1 if you want to save results to file, press enter to go back to menu: ");
if (Int32.TryParse(Console.ReadLine(), out int saveKey) && saveKey == 1)
{
Console.WriteLine("Please, enter name of file: ");
string fileName = Console.ReadLine();
using (StreamWriter w = new StreamWriter(fileName))
{
method.OutputResultsToFile(w, system, results, error);
}
}
}
break;
}
case 5:
{
system = LinearSystemOperator.Read();
break;
}
case 0:
break;
}
} while (key != 0);
}
catch (ArgumentException)
{
Console.WriteLine("You entered inappropriate value, the program will restart now, please follow instructions.");
Menu.RunMenu();
}
catch (Exception ex)
{
Console.WriteLine("An error occured during while program was running, please follow instructions");
Console.WriteLine($"{ ex.GetType()} says { ex.Message}");
Menu.RunMenu();
}
}
