private bool DoWork()
{
Stream stream = null;
string charset = null;
bool isgzip = false;
SendRequest(TempUrl, out stream, out charset, out isgzip);
if (stream == null)
{
return(false);
}
string html = null;
ProcessStream(stream, isgzip, charset, out html);
if (string.IsNullOrEmpty(html))
{
return(false);
}
string tempurl, data;
MFunction.Invoke(html, out tempurl, out data);
DataStore.SaveFile(data);
if (tempurl == null)
{
return(false);
}
TempUrl = tempurl;
return(true);
}
private static MatrixR Jacobian(MFunction f, VectorR x)
{
double h = 0.0001;
int n = x.GetSize();
MatrixR jacobian = new MatrixR(n, n);
VectorR x1 = x.Clone();
for (int j = 0; j < n; j++)
{
x1[j] = x[j] + h;
for (int i = 0; i < n; i++)
{
jacobian[i, j] = (f(x1)[i] - f(x)[i]) / h;
}
}
return(jacobian);
}
public static VectorR NewtonMultiEquations(MFunction f, VectorR x0, double tolerance)
{
LinearSystem ls = new LinearSystem();
VectorR dx = new VectorR(x0.GetSize());
do
{
MatrixR A = Jacobian(f, x0);
if (Math.Sqrt(VectorR.DotProduct(f(x0), f(x0)) / x0.GetSize()) < tolerance)
{
return(x0);
}
dx = ls.GaussJordan(A, -f(x0));
x0 = x0 + dx;
}while (Math.Sqrt(VectorR.DotProduct(dx, dx)) > tolerance);
return(x0);
}
private bool DoWork()
{
Stream stream = null;
string charset = null;
bool isgzip = false;
SendRequest(TempUrl, out stream, out charset, out isgzip);
if (stream == null)
{
return(false);
}
string html = null;
if (isgzip)
{
Stream st;
EncodeAndCompress.DecompressStream(stream, out st);
byte[] buff = new byte[st.Length];
st.Read(buff, 0, buff.Length);
html = Encoding.GetEncoding(charset).GetString(buff);
st.Close();
}
else
{
var reader = new StreamReader(stream, true);
html = reader.ReadToEnd();
reader.Close();
}
if (string.IsNullOrEmpty(html))
{
return(false);
}
string tempurl, data;
MFunction.Invoke(html, out tempurl, out data);
DataStore.SaveFile(data);
if (tempurl == null)
{
return(false);
}
TempUrl = tempurl;
return(true);
}
public int DoMathWithPoint(MFunction g)
{
return(g(X, Y));
}
public void minus(int pirmas)
{
this.pirmas = pirmas;
// saugom -
operacija = (x, y) => x - y;
}
public void plus(int pirmas)
{
this.pirmas = pirmas;
// saugom +
operacija = (x, y) => x + y;
}
