private static void GaussEliminationProblem()
{
Console.WriteLine($"Solving system with Gauss elimination:\n\nA = \n{systemMatrix2}\nb = \n{constantVector2}");
var solution = SystemSolver.Gauss(systemMatrix2, constantVector2);
Console.WriteLine($"Solution:\n\n~x = \n{solution}");
}
private static void ConditionNumberProblem()
{
Console.WriteLine($"Source system:\n\nA = \n{systemMatrix1}\nb = \n{constantVector11}");
var systemSolution = SystemSolver.Gauss(systemMatrix1, constantVector11);
Console.WriteLine($"Solution:\n\nx = \n{systemSolution}\n");
Console.WriteLine($"Modified system\n\nA = \n{systemMatrix1}\nb = \n{constantVector12}");
var modifiedSystemSolution = SystemSolver.Gauss(systemMatrix1, constantVector12);
Console.WriteLine($"Solution:\n\n~x = \n{modifiedSystemSolution}\n");
var conditionNumber = systemMatrix1.ConditionNumber();
var constantVectorDeviation = (constantVector11 - constantVector12).FrobeniusNorm / constantVector11.FrobeniusNorm;
var solutionRelativeError = (systemSolution - modifiedSystemSolution).FrobeniusNorm / systemSolution.FrobeniusNorm;
var errorEstimation = conditionNumber * constantVectorDeviation;
Console.WriteLine($"System matrix condition number: {conditionNumber.Format()}");
Console.WriteLine($"Solution relative error: {solutionRelativeError.Format()}");
Console.WriteLine($"Relative error estimation: {errorEstimation.Format()}");
}
/// <summary>
/// Изменить метод решения СЛАУ
/// </summary>
/// <param name="systemSolver">Метод решения СЛАУ</param>
public void SetSystemSolver(SystemSolver systemSolver)
{
this.systemSolver = systemSolver;
}