public Fraction GetPolyNewtonErr(Fraction fr, int poryadok, int row = 1)
{
Fraction q = new Fraction();
Fraction h = new Fraction();
Fraction qM = new Fraction(1, 1);
Fraction y1 = new Fraction();
if (poryadok >= this.NRow - row - 3)
{
poryadok = this.NRow - row - 3;
}
if (isRavnom())
{
q = this.matr.A[1, 0].CopyFr;
h = this.matr.A[2, 0].CopyFr;
h -= q;
q = this.matr.A[row, 0].CopyFr;
q = (fr - q) / h;
qM.FractTxt = q.FractTxt;
y1 = this.matr.A[row, poryadok + 2].CopyFr;
for (int i = 1; i <= poryadok; i++)
{
qM *= (q - i);
}
qM *= y1 / MyFuncs.factorial(poryadok + 1);
}
else
{
}
return(qM);
}
public PriblWindow()
{
InitializeComponent();
tblMatr = new Matr(int.Parse(tblRows.Text) + 1, int.Parse(tblRows.Text) + 1);
tabl = new Table(ref GrdFunc, ref tblMatr, 2);
tblIspRow.maxVal = tabl.NRow - 1;
Poryadok.maxVal = tabl.NCol - 2;
myWeb.NavigateToString("<h1>Test</h1>");
txtPolynom.Text = MyFuncs.diffUr("y(1)=(2/x)*y+x", new Fraction(), new Fraction(1, 1), new Fraction(1, 20), new Fraction(3, 2)).FractTxt;
}
public void MatrWrite()
{
for (int i = 0; i < this.NRow; i++)
{
for (int j = 0; j < this.nCol; j++)
{
this.matr.A[i, j].FractTxt = MyFuncs.convertToFract(this.txtBxs[i, j].Text);
}
}
}
public string GetPolyNewton(int poryadok, int row = 1)
{
string str = this.txtBxs[row, 1].Text;
string proizv = "";
Fraction m = new Fraction();
Fraction l = new Fraction();
Fraction k = new Fraction();
if (isRavnom())
{
Fraction h = new Fraction();
m = this.matr.A[1, 0].CopyFr;
k = this.matr.A[2, 0].CopyFr;
h = k - m;
if (poryadok >= this.NRow - row - 1)
{
poryadok = this.NRow - row - 1;
}
for (int i = 1; i <= poryadok; i++)
{
m.FractTxt = "" + MyFuncs.factorial(i);
m *= h.Power(i);
l = this.matr.A[row, i + 1].CopyFr;
l /= m;
//str += "+" + l.FractTxt;
str += (l < 0?"":"+") + l.FractTxt;
proizv = "";
for (int j = 1; j < i + 1; j++)
{
//proizv += "(" + this.txtBxs[0, 0].Text + "-" + this.txtBxs[j + row - 1, 0].Text + ")";
proizv += '\x00D7' + (this.txtBxs[j + row - 1, 0].Text == "0" ? "" :"(") + this.txtBxs[0, 0].Text + (this.txtBxs[j + row - 1, 0].Text == "0"?"": "-" + this.txtBxs[j + row - 1, 0].Text + ")");
}
str += proizv;
}
}
else
{
if (poryadok >= this.NRow - row - 1)
{
poryadok = this.NRow - row - 1;
}
for (int i = 1; i <= poryadok; i++)
{
l = this.matr.A[row, i + 1].CopyFr;
str += (l < 0 ? "" : "+") + l.FractTxt;
proizv = "";
for (int j = 1; j < i + 1; j++)
{
proizv += '\x00D7' + (this.txtBxs[j + row - 1, 0].Text == "0" ? "" : "(") + this.txtBxs[0, 0].Text + (this.txtBxs[j + row - 1, 0].Text == "0" ? "" : "-" + this.txtBxs[j + row - 1, 0].Text + ")");
}
str += proizv;
}
}
return(str);
}
public Fraction GetPolyNewtonVal(Fraction fr, int poryadok, int row = 1)
{
Fraction rez = new Fraction();
rez = this.matr.A[row, 1].CopyFr;
Fraction m = new Fraction(1, 1);
Fraction n = new Fraction(1, 1);
Fraction l = new Fraction(1, 1);
Fraction k = new Fraction(1, 1);
if (poryadok >= this.NRow - row - 1)
{
poryadok = this.NRow - row - 1;
}
if (isRavnom())
{
Fraction h = new Fraction();
m = this.matr.A[1, 0].CopyFr;
k = this.matr.A[2, 0].CopyFr;
h = k - m;
for (int i = 1; i <= poryadok; i++)
{
m.FractTxt = "" + MyFuncs.factorial(i);
m *= h.Power(i);
l = this.matr.A[row, i + 1].CopyFr;
l /= m;
n.FractTxt = "1";
for (int j = 1; j < i + 1; j++)
{
k = this.matr.A[j + row - 1, 0].CopyFr;
n *= (fr - k);
}
rez += l * n;
}
}
else
{
for (int i = 1; i <= poryadok; i++)
{
l = this.matr.A[row, i + 1].CopyFr;
n.FractTxt = "1";
for (int j = 1; j < i + 1; j++)
{
k = this.matr.A[j + row - 1, 0].CopyFr;
n *= (fr - k);
}
rez += l * n;
}
}
return(rez);
}
private void SobstChisla_Click(object sender, RoutedEventArgs e)
{
myM1.MatrWrite();
myM2.MatrWrite();
try
{
//SystUrav s = new SystUrav(m1.MyMatrToQuadMatr(), m2.MyMatrToMatr());
QuadMatr x = myM1.matr.toQuadMatr();
Fraction fr = new Fraction();
fr.FractTxt = MyFuncs.convertToFract(lambda.Text);
Matr lbd = x.InverseIterMetod(fr, myM2.MyMatrToMatr());
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void SystUr_simple_Click(object sender, RoutedEventArgs e)
{
myM1.MatrWrite();
myM2.MatrWrite();
try
{
SystUrav s = new SystUrav(myM1.matr.toQuadMatr(), myM2.matr);
Fraction ep = new Fraction();
ep.FractTxt = MyFuncs.convertToFract(eps.Text);
Matr m = s.SimpleIterRoots(ep, int.Parse(SimpleIterTxt.Text));
RezWnd = new RezWindow();
RezWnd.Owner = this;
RezWnd.Title = "Корни системы уравнений";
myMRez = new MyMatr(ref RezWnd.MatrRezGrid, ref m, 5);
myMRez.isDouble = (bool)isDbl.IsChecked;
myMRez.Redraw();
RezWnd.btnCopyTo1.Visibility = Visibility.Hidden;
RezWnd.btnCopyTo2.Visibility = Visibility.Hidden;
TextBox[,] b = myMRez.GetMatrBx();
b[0, 0].Text = "корни";
b[0, 0].FontWeight = FontWeights.Bold;
b[0, 1].Text = "" + '\x03B4';
b[0, 1].FontWeight = FontWeights.Bold;
b[0, 2].Text = '\x03B4' + "(" + m.A[0, 2].FractTxt + ")";
b[0, 2].FontWeight = FontWeights.Bold;
//for (int i = 1; i < mRez.NRow; i++)
//{
// if (b[i, 2].Text == "1")
// {
// b[i, 2].Text = "верно";
// }
// else
// {
// b[i, 2].Text = "неверно";
// }
//}
RezWnd.ShowDialog();
myMRez = null;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void btnLagr_Click(object sender, RoutedEventArgs e)
{
if (tabl.isRavnom())
{
tabl.GetTablKonRazn();
}
else
{
tabl.GetTablRazdelRazn();
}
txtPolynom.Text = "";
txtPolynom.Text = tabl.GetPolyLagrange();
Fraction fr = new Fraction();
fr.FractTxt = MyFuncs.convertToFract(valPoly.Text);
txtPolynom.Text = txtPolynom.Text + "=" + tabl.GetPolyLagrangeVal(fr).FractTxt;
}
private void btnTrapForm_Click(object sender, RoutedEventArgs e)
{
if (tabl.isRavnom())
{
tabl.GetTablKonRazn();
}
else
{
tabl.GetTablRazdelRazn();
}
Fraction a = new Fraction();
Fraction b = new Fraction();
Fraction fr = new Fraction();
fr.FractTxt = MyFuncs.convertToFract(valPoly.Text);
a.FractTxt = MyFuncs.convertToFract(val_a.Text);
b.FractTxt = MyFuncs.convertToFract(val_b.Text);
GrdGraf.Children.Clear();
tabl.DrawIntegr(ref GrdGraf, a, b, int.Parse(numInt.Text));
tabl.DrawPolynom(ref GrdGraf, tabl.NCol - 2, fr, 1, 50);
MessageBox.Show("Интеграл равен: " + tabl.GetTrapForm(a, b, int.Parse(numInt.Text)).ToDouble());
}
private void btnNewton_Click(object sender, RoutedEventArgs e)
{
if (tabl.isValid())
{
if (tabl.isRavnom())
{
tabl.GetTablKonRazn();
}
else
{
tabl.GetTablRazdelRazn();
}
txtPolynom.Text = "";
Fraction fr = new Fraction();
fr.FractTxt = MyFuncs.convertToFract(valPoly.Text);
txtPolynom.Text = tabl.GetPolyNewton(int.Parse(Poryadok.Text), int.Parse(tblIspRow.Text)) + "=" + tabl.GetPolyNewtonVal(fr, int.Parse(Poryadok.Text), int.Parse(tblIspRow.Text)).FractTxt;
GrdGraf.Children.Clear();
tabl.DrawPolynom(ref GrdGraf, int.Parse(Poryadok.Text), fr, int.Parse(tblIspRow.Text), 50);
}
else
{
MessageBox.Show("Заполните все значения X и Y!");
}
}
public Fraction GetPolyNewtonDiff2Val(Fraction fr, int poryadok, int row = 1)
{
if (poryadok >= this.NRow - row - 1)
{
poryadok = this.NRow - row - 1;
if (poryadok >= 5)
{
poryadok = 5;
}
}
Fraction rez = new Fraction();
if (isRavnom())
{
Fraction m = new Fraction();
Fraction q = new Fraction();
Fraction k = new Fraction();
Fraction l1 = new Fraction();
Fraction l2 = new Fraction();
Fraction l3 = new Fraction();
Fraction l4 = new Fraction();
Fraction l5 = new Fraction();
Fraction h = new Fraction();
m = this.matr.A[1, 0].CopyFr;
k = this.matr.A[2, 0].CopyFr;
h = k - m;
k = this.matr.A[row, 0].CopyFr;
q = (fr - k) / h;
switch (poryadok)
{
case 1:
l1 = this.matr.A[row, 2].CopyFr;
rez = l1;
break;
case 2:
l1 = this.matr.A[row, 2].CopyFr;
l2 = this.matr.A[row, 3].CopyFr;
rez = h.Invert() * (l1 + l2 * (q * 2 - 1) / MyFuncs.factorial(2));
break;
case 3:
l1 = this.matr.A[row, 2].CopyFr;
l2 = this.matr.A[row, 3].CopyFr;
l3 = this.matr.A[row, 4].CopyFr;
rez = h.Invert().Power(2) * (l2 + l3 * (q - 1));
break;
case 4:
l1 = this.matr.A[row, 2].CopyFr;
l2 = this.matr.A[row, 3].CopyFr;
l3 = this.matr.A[row, 4].CopyFr;
l4 = this.matr.A[row, 5].CopyFr;
rez = h.Invert().Power(2) * (l2 + l3 * (q - 1) + l4 * (6 * q.Power(2) - 18 * q + 11) / 12);
break;
case 5:
l1 = this.matr.A[row, 2].CopyFr;
l2 = this.matr.A[row, 3].CopyFr;
l3 = this.matr.A[row, 4].CopyFr;
l4 = this.matr.A[row, 5].CopyFr;
l5 = this.matr.A[row, 6].CopyFr;
rez = h.Invert().Power(2) * (l2 + l3 * (q - 1) + l4 * (6 * q.Power(2) - 18 * q + 11) / 12 + l5 * (2 * q.Power(3) - 12 * q.Power(2) + 21 * q - 10) / 12);
break;
default:
MessageBox.Show("Максимальный поддерживаемый порядок = 5!");
break;
}
}
return(rez);
}