private void button1_Click(object sender, EventArgs e)
{
double xmax = 1;
double xmin = -1;
double a = Convert.ToDouble(textBox4.Text);
N = Convert.ToInt32(textBox5.Text);
n = N / 10;
double h = (xmax - xmin) / N;
Input(a, h, xmin, xmax);
p = new double[N];
if (flag == 1)
InputP_1();
else
InputP_2();
InputP_2();
Vector.p = p;
Vector x = new Vector(N - 1);
Vector y = new Vector(N - 1);
for (int i = 0; i < N - 1; i++)
{
x[i] = Convert.ToDouble(this.dataGridView1.Rows[i].Cells[0].Value);
y[i] = Convert.ToDouble(this.dataGridView1.Rows[i].Cells[1].Value);
}
Vector[] phi = new Vector[n];
for (int i = 0; i < n; i++)
phi[i] = new Vector(N - 1);
for (int i = 0; i < N - 1; i++)
phi[0][i] = 1;
double norm = Vector.Norm(phi[0]);
for (int i = 0; i < N - 1; i++)
phi[0][i] /= norm;
for (int j = 1; j < n; j++)
{
phi[j] = x * phi[j - 1];
for (int i = j - 1; i >= 0 ; i--)
{
phi[j] = phi[j] + ( -Vector.DotProduct(x * phi[j - 1], phi[i])) * phi[i];
}
phi[j] /= Vector.Norm(phi[j]);
}
Vector ystar = new Vector(N - 1);
Cet_Output_Tabble();
for (int j = 0; j < n; j++)
{
ystar = ystar + Vector.DotProduct(y, phi[j]) * phi[j];
Output(ystar, j);
}
radioButton1.Enabled = false;
radioButton2.Enabled = false;
button3.Enabled = true;
button1.Enabled = false;
// Output(ystar, 0);
// Console.WriteLine();
}
public static double DotProduct(Vector a, Vector b)
{
int n;
if (a.n == b.n)
n = a.n;
else
throw new ArgumentException();
double sum = 0;
for (int i = 0; i < n; i++)
sum += a[i] * b[i] * p[i];
return sum;
}
public static double Norm(Vector a)
{
return Math.Sqrt(DotProduct(a, a));
}
public static Vector operator /(Vector v, double k)
{
Vector result = new Vector(v.n);
for (int i = 0; i < v.n; i++)
result[i] = v[i] / k;
return result;
}
public static Vector operator +(Vector v1, Vector v2)
{
int n;
if (v1.n == v2.n)
n = v1.n;
else
throw new ArgumentException();
Vector sum = new Vector(n);
for (int i = 0; i < n; i++)
{
sum[i] = v1[i] + v2[i];
}
return sum;
}
public static Vector operator *(Vector v1, Vector v2)
{
int n;
if (v1.n == v2.n)
n = v1.n;
else
throw new ArgumentException();
Vector result = new Vector(n);
for (int i = 0; i < n; i++)
result[i] = v1[i] * v2[i];
return result;
}
public static Vector operator *(double k, Vector v)
{
Vector result = new Vector(v.n);
for (int i = 0; i < v.n; i++)
result[i] = k * v[i];
return result;
}
private void Output(Vector ystar, int j)
{
Vector y = new Vector(N - 1);
for (int i = 0; i < N - 1; i++)
y[i] = Convert.ToDouble(this.dataGridView1.Rows[i].Cells[1].Value);
for (int i = 0; i < ystar.data.Length; i++)
this.dataGridView2.Rows[i].Cells[j].Value = Convert.ToDouble(Math.Abs((ystar[i]) - y[i]));
}
