void InitMainDifferenceTable(int nrows, int ncolumns, ref DirichletTask task, ref DirichletTask task2)
{
for (int i = 1; i < nrows - 1; i++)
{
for (int j = 2; j < ncolumns; j++)
{
int ii = Convert.ToInt32(dataGridView1.Columns[j].Name);
int jj = Convert.ToInt32(dataGridView1.Rows[i].Cells[0].Value);
dataGridView1.Rows[i].Cells[j].Value = Math.Abs(task2.GetValue(2 * ii, 2 * jj) - task.GetValue(ii, jj));
}
}
}
void InitVTable(int nrows, int ncolumns, ref DirichletTask task)
{
for (int i = 1; i < nrows - 1; i++)
{
for (int j = 2; j < ncolumns; j++)
{
int ii = Convert.ToInt32(dataGridView1.Columns[j].Name);
int jj = Convert.ToInt32(dataGridView1.Rows[i].Cells[0].Value);
dataGridView1.Rows[i].Cells[j].Value = task.GetValue(ii, jj);
}
}
}
double CalculateMainError(ref DirichletTask task, ref DirichletTask task2, ref int iTotalEps, ref int jTotalEps)
{
double maxError = -1e100;
for (int i = 1, j = 1; i < n && j < m; task.GetNextInnerXYIndex(ref i, ref j))
{
double currError = Math.Abs(task2.GetValue(2 * i, 2 * j) - task.GetValue(i, j));
if (currError > maxError)
{
maxError = currError;
iTotalEps = i; jTotalEps = j;
}
}
return(maxError);
}
private void МетодСопряженногоГрадиентаToolStripMenuItem_Click(object sender, EventArgs e)
{
InitMethodParameters();
istest = true;
isrectangle = true;
task = new TestTaskRectangle(a, b, c, d, n, m, eps, nmax, initApprx);
task.ConjugateGradientMethod();
int iTotalEps = -1, jTotalEps = -1;
double maxError = CalculateTestError(ref task, ref iTotalEps, ref jTotalEps);
double xTotalEps = a + iTotalEps * (b - a) / n;
double yTotalEps = c + jTotalEps * (d - c) / m;
double rmax = task.RMax();
double r2 = task.R2();
WriteResults(istest, maxError, iTotalEps, jTotalEps, xTotalEps, yTotalEps, task.epsMax, task.countSteps, rmax, r2);
}
private void МетодВерхнейРелаксацииToolStripMenuItem_Click(object sender, EventArgs e)
{
InitMethodParameters();
istest = true;
isrectangle = true;
task = new TestTaskRectangle(a, b, c, d, n, m, eps, nmax, initApprx, w);
task.OverRelaxationMethod();
int iTotalEps = -1, jTotalEps = -1;
double maxError = CalculateTestError(ref task, ref iTotalEps, ref jTotalEps);
double xTotalEps = a + iTotalEps * (b - a) / n;
double yTotalEps = c + jTotalEps * (d - c) / m;
double rmax = task.RMax();
double r2 = task.R2();
WriteResults(istest, maxError, iTotalEps, jTotalEps, xTotalEps, yTotalEps, task.epsMax, task.countSteps, rmax, r2);
str_w.Text = task.w.ToString();
}
private void ТестоваяЗадачаНаНепрямоугольнойОбластиToolStripMenuItem_Click(object sender, EventArgs e)
{
InitMethodParameters();
istest = true;
isrectangle = false;
task = new TestTaskRectangleWithHole(a, b, c, d, n, m, eps, nmax, initApprx);
task.ConjugateGradientMethod();
int nrows = m + 2;
int ncolumns = n + 3;
int iTotalEps = -1, jTotalEps = -1;
double maxError = CalculateTestError(ref task, ref iTotalEps, ref jTotalEps);
double xTotalEps = a + iTotalEps * (b - a) / n;
double yTotalEps = c + jTotalEps * (d - c) / m;
double rmax = task.RMax();
double r2 = task.R2();
WriteResults(istest, maxError, iTotalEps, jTotalEps, xTotalEps, yTotalEps, task.epsMax, task.countSteps, rmax, r2);
}
private void методСопряженныхГрадиентовToolStripMenuItem_Click(object sender, EventArgs e)
{
InitMethodParameters();
istest = false;
isrectangle = true;
task = new MainTaskRectangle(a, b, c, d, n, m, eps, nmax, initApprx, w);
task2 = new MainTaskRectangle(a, b, c, d, 2 * n, 2 * m, eps, nmax, initApprx, w);
task.ConjugateGradientMethod();
task2.ConjugateGradientMethod();
int iTotalEps = -1, jTotalEps = -1;
double maxError = CalculateMainError(ref task, ref task2, ref iTotalEps, ref jTotalEps);
double xTotalEps = a + iTotalEps * (b - a) / n;
double yTotalEps = c + jTotalEps * (d - c) / m;
double rmax = task.RMax();
double rmax2 = task2.RMax();
double r2 = task.R2();
double r22 = task2.R2();
WriteResults(istest, maxError, iTotalEps, jTotalEps, xTotalEps, yTotalEps, task.epsMax, task.countSteps, rmax, r2, rmax2, r22);
str_w.Text = task.w.ToString();
}
private void МетодМинимальныхНевязокToolStripMenuItem1_Click(object sender, EventArgs e)
{
InitMethodParameters();
istest = false;
isrectangle = true;
task = new MainTaskRectangle(a, b, c, d, n, m, eps, nmax, initApprx);
task2 = new MainTaskRectangle(a, b, c, d, 2 * n, 2 * m, eps, nmax, initApprx);
task.MinimumResidualsMethod();
task2.MinimumResidualsMethod();
int iTotalEps = -1, jTotalEps = -1;
double maxError = CalculateMainError(ref task, ref task2, ref iTotalEps, ref jTotalEps);
double xTotalEps = a + iTotalEps * (b - a) / n;
double yTotalEps = c + jTotalEps * (d - c) / m;
double rmax = task.RMax();
double rmax2 = task2.RMax();
double r2 = task.R2();
double r22 = task2.R2();
WriteResults(istest, maxError, iTotalEps, jTotalEps, xTotalEps, yTotalEps, task.epsMax, task.countSteps, rmax, r2, rmax2, r22);
str_w.Text = task.w.ToString();
}
