public Vector Start()
{
Parser temp = new Parser();
Vector X1 = _X0; // Начальная точка
Vector X2;
Vector X3;
Vector X4;
Console.WriteLine("Начальная точка: " + X1.printVector());
do
{
Console.WriteLine("Начинаем ИП1");
X2 = IP(X1); // ИП1 в окрестности X1
Console.WriteLine("X2 = " + X2.printVector());
double fx1 = Convert.ToDouble(temp.Parse(_func, X2.ch));
double fx2 = Convert.ToDouble(temp.Parse(_func, X1.ch));
Console.WriteLine("X1 = " + X1.printVector());
Console.WriteLine("X2 = " + X2.printVector());
Console.WriteLine("Fx1 {0} Fx2 {1}", fx1, fx2);
// Если ИП1 удачен
if (fx1 < fx2)
{
Console.WriteLine("ИП1 - удачен");
while (true)
{
X3 = 2 * X2 - X1;
X1 = X2;
X4 = IP(X3);
if (Convert.ToDouble(temp.Parse(_func, X4.ch)) < Convert.ToDouble(temp.Parse(_func, X2.ch)))
{
X2 = X4;
}
else
{
h /= b;
break;
}
}
}
else // ИП1 неудачен
{
Console.WriteLine("ИП1 неудачен");
h /= b;
if (h < this._eps)
{
break;
}
}
} while (true);
return(X1);
}
public void getReport(double alpha)
{
Forms.RunningProcess.frmRunningProcessDialog rd = new Forms.RunningProcess.frmRunningProcessDialog(false);
rd.Text = "Logistic Regression Results";
rd.TopLevel = true;
rd.pgbProcess.Visible = false;
rd.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Sizable;
rd.addMessage("LogLikelihood = " + LogLikelihood.ToString());
rd.addMessage("Deviance = " + Deviance.ToString());
rd.addMessage("Likelihood Ratio Chi-squared = " + X2.ToString() + " DF = " + DegreesOfFredom.ToString() + " p-value = " + PValue.ToString());
rd.addMessage("\n\nClasses: " + String.Join(", ", Categories));
rd.addMessage("Reference Class = " + Categories[0]);
rd.addMessage("\nParameter coefficients:\n");
rd.addMessage("intercept, " + String.Join(", ", IndependentFieldNames));
rd.addMessage("Coef: " + String.Join(" ", (from double d in Coefficients select d.ToString()).ToArray()));
rd.addMessage("STE: " + String.Join(", ", (from double d in StandardError select d.ToString()).ToArray()));
rd.addMessage("\n\nWald stats for coefficients:\nchi-sq: " + String.Join(", ", (from Accord.Statistics.Testing.WaldTest d in WaldStatistic select d.Statistic.ToString()).ToArray()));
rd.addMessage("p-value: " + String.Join(", ", (from Accord.Statistics.Testing.WaldTest d in WaldStatistic select d.PValue.ToString()).ToArray()));
try
{
if (ModelHelper.chartingAvailable() && System.Windows.Forms.MessageBox.Show("Do you want to build probability graphs?", "Graphs", System.Windows.Forms.MessageBoxButtons.YesNo) == System.Windows.Forms.DialogResult.Yes)
{
createRegChart();
}
}
catch
{
System.Windows.Forms.MessageBox.Show("Cannot create charts");
}
rd.Show();
rd.enableClose();
}
public override int GetHashCode()
{
int hash = 1;
if (X1 != 0)
{
hash ^= X1.GetHashCode();
}
if (Y1 != 0)
{
hash ^= Y1.GetHashCode();
}
if (X2 != 0)
{
hash ^= X2.GetHashCode();
}
if (Y2 != 0)
{
hash ^= Y2.GetHashCode();
}
if (_unknownFields != null)
{
hash ^= _unknownFields.GetHashCode();
}
return(hash);
}
/// <summary>
/// The Hopcroft - Karp algorithm reduces the number of states
///
/// </summary>
///Algorithm:
///P := {{all accepting states}, {all nonaccepting states}};
///Q := {{all accepting states}};
///E := { all edges }
///while (Q is not empty) do
/// choose and remove a set A from Q
/// for each c in E do
/// let X be the set of states for which a transition on c leads to a state in A
/// for each set Y in P for which X ∩ Y is nonempty do
/// replace Y in P by the two sets X ∩ Y and Y \ X
/// if Y is in Q
/// replace Y in Q by the same two sets
/// else
/// add the smaller of the two sets to Q
/// end;
/// end;
///end;
private void HopcroftAlgorithm(ILogger logger, List <DfaNode> states)
{
//var P = HopcraftAlgorithm.FindEquivalentStates(states, edges);
var P = HopcraftAlgorithm.FindEquivalentStates(states, edges);
var toRemove = new Dictionary <int, int>();
foreach (var X2 in P)
{
using var e = X2.GetEnumerator();
if (e.MoveNext())
{
var first = e.Current;
while (e.MoveNext())
{
toRemove.Add(e.Current, first);
}
}
}
var removed = 0;
foreach (var pair in toRemove.OrderByDescending(x => x.Key))
{
Remove(states, pair.Value, pair.Key);
removed++;
}
if (removed > 0)
{
logger.LogMessage(Importance.Low,
" Removed {0} duplicate DFA states",
removed);
}
}
/// <summary>
/// Вычисления корней в обработчике
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void InHandler_Click(object sender, EventArgs e)
{
if (TextA.Text != "" && TextB.Text != "" && TextC.Text != "" &&
TextA.Text != "-" && TextB.Text != "-" && TextC.Text != "-" &&
TextA.Text != "+" && TextB.Text != "+" && TextC.Text != "+" &&
TextA.Text != "," && TextB.Text != "," && TextC.Text != ",")
{
double D, X1, X2, a, b, c;
a = double.Parse(TextA.Text);
b = double.Parse(TextB.Text);
c = double.Parse(TextC.Text);
D = b * b - 4 * a * c;
if (D >= 0)
{
X1 = (-1 * b + Math.Sqrt(D)) / (2 * a);
X2 = (-1 * b - Math.Sqrt(D)) / (2 * a);
TextX1.Text = X1.ToString("F4");
TextX2.Text = X2.ToString("F4");
}
else
{
string comp_x1, comp_x2;
comp_x1 = (-1 * b / (2 * a)).ToString("F4") + "+" +
(Math.Sqrt(-1 * D) / (2 * a)).ToString("F4") + "i";
comp_x2 = (-1 * b / (2 * a)).ToString("F4") + "-" +
(Math.Sqrt(-1 * D) / (2 * a)).ToString("F4") + "i";
TextX1.Text = comp_x1;
TextX2.Text = comp_x2;
}
}
else
{
Error.Text = "Ошибка, не все поля заполнены! \nЛибо неверный формат вводимых данных!";
}
}
public static X2 V2(X2 t)
{
var cur = new X2();
cur.y += 1;
return(cur);
}
public override void WriteGroupCodes()
{
int flags;
WriteGroupCodeValue(10, X0.ToString().Trim());
WriteGroupCodeValue(20, Y0.ToString().Trim());
WriteGroupCodeValue(30, Z0.ToString().Trim());
WriteGroupCodeValue(11, X1.ToString().Trim());
WriteGroupCodeValue(21, Y1.ToString().Trim());
WriteGroupCodeValue(31, Z1.ToString().Trim());
WriteGroupCodeValue(12, X2.ToString().Trim());
WriteGroupCodeValue(22, Y2.ToString().Trim());
WriteGroupCodeValue(32, Z2.ToString().Trim());
WriteGroupCodeValue(13, X3.ToString().Trim());
WriteGroupCodeValue(23, Y3.ToString().Trim());
WriteGroupCodeValue(33, Z3.ToString().Trim());
flags = 0;
if(Edge1Invisible) flags += 1;
if(Edge2Invisible) flags += 2;
if(Edge3Invisible) flags += 4;
if(Edge4Invisible) flags += 8;
WriteGroupCodeValue(70, flags.ToString().Trim());
}
public static void MainTest()
{
var x1 = new X1();
var x2 = new X2();
var x3 = new X3();
var x4 = new X4();
x4.Display2();
x1 = x4;
x1.Display1();
System.Console.WriteLine(x1.y);
//x1.Display2();
System.Console.WriteLine();
var tt = new Y <int, Double>();
tt.Set(3);
tt.Set(.3);
x1 = new X1();
var x11 = new X1();
x2 = new X2();
var x22 = new X2();
x1 = T1.V1(x22);
//x2 = T1.V2(x1);
}
static void Main(string[] args)
{
for (int k = 0; k < 4; k++)
{
double A, B, C, delta, X1, X2;
string[] s = Console.ReadLine().Split(' ');
A = double.Parse(s[0]);
B = double.Parse(s[1]);
C = double.Parse(s[2]);
if (A == 0)
{
Console.WriteLine("Impossivel calcular");
}
else
{
delta = Math.Pow(B, 2.0) - (4.0 * A * C);
if (delta < 0)
{
Console.WriteLine("Impossivel calcular");
}
else
{
X1 = (-B + Math.Sqrt(delta)) / (2.0 * A);
X2 = (-B - Math.Sqrt(delta)) / (2.0 * A);
Console.WriteLine("X1 = " + X1.ToString("F5"));
Console.WriteLine("X2 = " + X2.ToString("F5"));
}
}
Console.WriteLine();
}
}
public void disableMultiplier()
{
isRestoring = true;
X1.GetComponent <Image>().fillAmount = 0.0f;
X2.GetComponent <Image>().fillAmount = 0.0f;
X3.GetComponent <Image>().fillAmount = 0.0f;
}
public void ConvertBadStateValuesToZero()
{
X1 = X1.ConvertBadValuesToZero();
X2 = X2.ConvertBadValuesToZero();
Y1 = Y1.ConvertBadValuesToZero();
Y2 = Y2.ConvertBadValuesToZero();
}
public void onJoker2Click()
{
//Disable button and show cross
callAFriend.GetComponent <Button>().enabled = false;
X2.SetActive(true);
CallAFriend();
}
public string writeModel(string outModelPath)
{
if (lr == null)
{
buildModel();
}
outPath = outModelPath;
using (System.IO.StreamWriter sw = new System.IO.StreamWriter(outPath))
{
sw.WriteLine(modelTypes.LogisticRegression.ToString());
sw.WriteLine(InTablePath);
sw.WriteLine(String.Join(",", IndependentFieldNames));
sw.WriteLine(String.Join(",", DependentFieldNames));
sw.WriteLine(String.Join(",", ClassFieldNames));
sw.WriteLine(String.Join(",", Categories));
sw.WriteLine(NumberOfIndependentVariables.ToString());
sw.WriteLine(NumberOfCategories.ToString());
sw.WriteLine(LogLikelihood.ToString());
sw.WriteLine(Deviance.ToString());
sw.WriteLine(X2.ToString());
sw.WriteLine(PValue.ToString());
sw.WriteLine(String.Join(",", (from double d in minValues select d.ToString()).ToArray()));
sw.WriteLine(String.Join(",", (from double d in maxValues select d.ToString()).ToArray()));
sw.WriteLine(String.Join(",", (from double d in sumValues select d.ToString()).ToArray()));
sw.WriteLine(String.Join(",", (from double d in Coefficients select d.ToString()).ToArray()));
sw.WriteLine(String.Join(",", (from double d in StandardError select d.ToString()).ToArray()));
sw.WriteLine(String.Join(",", (from Accord.Statistics.Testing.WaldTest d in WaldStatistic select d.Statistic.ToString()).ToArray()));
sw.WriteLine(String.Join(",", (from Accord.Statistics.Testing.WaldTest d in WaldStatistic select d.PValue.ToString()).ToArray()));
sw.Close();
}
return(outPath);
}
/// <summary>
/// Gets the hash code
/// </summary>
/// <returns>Hash code</returns>
public override int GetHashCode()
{
unchecked // Overflow is fine, just wrap
{
int hashCode = 41;
hashCode = hashCode * 59 + Type.GetHashCode();
hashCode = hashCode * 59 + Barcode1DSymbology.GetHashCode();
if (Data != null)
{
hashCode = hashCode * 59 + Data.GetHashCode();
}
hashCode = hashCode * 59 + X1.GetHashCode();
hashCode = hashCode * 59 + X2.GetHashCode();
hashCode = hashCode * 59 + X3.GetHashCode();
hashCode = hashCode * 59 + X4.GetHashCode();
hashCode = hashCode * 59 + Y1.GetHashCode();
hashCode = hashCode * 59 + Y2.GetHashCode();
hashCode = hashCode * 59 + Y3.GetHashCode();
hashCode = hashCode * 59 + Y4.GetHashCode();
hashCode = hashCode * 59 + BboxLeftInches.GetHashCode();
hashCode = hashCode * 59 + BboxTopInches.GetHashCode();
hashCode = hashCode * 59 + BboxWidthInches.GetHashCode();
hashCode = hashCode * 59 + BboxHeightInches.GetHashCode();
hashCode = hashCode * 59 + PageNumber.GetHashCode();
hashCode = hashCode * 59 + PagePixelWidth.GetHashCode();
hashCode = hashCode * 59 + PagePixelHeight.GetHashCode();
hashCode = hashCode * 59 + PageHorizontalResolution.GetHashCode();
hashCode = hashCode * 59 + PageVerticalResolution.GetHashCode();
return(hashCode);
}
}
public static void DifferentObjectTypesHaveDifferentHashes()
{
var x = new X1();
var y = new X2();
Assert.NotEqual(x.GetHashCode(), y.GetHashCode());
}
public static void SaveLog(int itemIndex, string runResult)
{
//创建文件夹
if (!Directory.Exists(logDir))
{
Directory.CreateDirectory(logDir);
}
var lineVals = new List <string>
{
DateTime.Now.ToString("HH:mm:ss"), X1.ToString("f3"), X2.ToString("f3"), Y1.ToString("f3"),
Y2.ToString("f3"), angle.ToString("f3"),
runResult, itemIndex.ToString(), " ", X1_pixel.ToString("f3"), X2_pixel.ToString("f3"),
Y1_pixel.ToString("f3"), Y2_pixel.ToString("f3"),
angleUncalib.ToString("f3")
};
var line = string.Join(",", lineVals);
try
{
csvFile = dataLogger.WriteLine(line);
}
catch
{
MessageBox.Show("请关闭所有CCD软件产生的文档");
}
removeOutdatedFiles(logDir);
}
public override IEnumerable <SvgAttribute> GetAttributes()
{
var baseAttributes = base.GetAttributes();
if (baseAttributes != null)
{
foreach (var attr in baseAttributes)
{
yield return(attr);
}
}
var ci = CultureInfo.InvariantCulture;
yield return(new SvgAttribute("x1", "0",
() => X1.ToString(ci),
v => X1 = SvgAttribute.ParseFloatAttribute(v)
));
yield return(new SvgAttribute("y1", "0",
() => Y1.ToString(ci),
v => Y1 = SvgAttribute.ParseFloatAttribute(v)
));
yield return(new SvgAttribute("x2", "0",
() => X2.ToString(ci),
v => X2 = SvgAttribute.ParseFloatAttribute(v)
));
yield return(new SvgAttribute("y2", "0",
() => Y2.ToString(ci),
v => Y2 = SvgAttribute.ParseFloatAttribute(v)
));
yield return(new SvgAttribute("stroke-width",
() => StrokeWidth.ToString(ci),
v => StrokeWidth = SvgAttribute.ParseFloatAttribute(v)
));
yield return(new SvgAttribute("stroke",
() => Stroke == Color.Empty ? "none" : ColorTranslator.ToSvg(Stroke),
v => Stroke = SvgAttribute.ParseColorAttribute(v, Stroke.A)
));
yield return(new SvgAttribute("stroke-opacity", "1",
() => ((double)Stroke.A / 255).ToString(ci),
v => Stroke = SvgAttribute.ParseOpacityAttribute(v, Stroke)
));
yield return(new SvgAttribute("stroke-dashoffset",
() => StrokeDashOffset.ToString(ci),
v => StrokeDashOffset = SvgAttribute.ParseFloatAttribute(v)
));
yield return(new SvgAttribute("stroke-dasharray",
() => DashArrayToString(),
v => StrokeDashArray = SvgAttribute.ParseFloatArray(v)
));
}
IEnumerator GTLSequence(int multiplierGtl)
{
isRegenGtl = true;
switch (multiplierGtl)
{
case 1:
for (int i = 0; i < 6; i++)
{
X1.GetComponent <Image>().fillAmount = 1.0f;
yield return(new WaitForSeconds(0.125f));
X1.GetComponent <Image>().fillAmount = 0.0f;
if (isRestoring)
{
statusGTL = 0;
break;
}
yield return(new WaitForSeconds(0.125f));
}
X1.GetComponent <Image>().fillAmount = 1.0f;
break;
case 2:
for (int i = 0; i < 6; i++)
{
X2.GetComponent <Image>().fillAmount = 1.0f;
yield return(new WaitForSeconds(0.125f));
X2.GetComponent <Image>().fillAmount = 0.0f;
if (isRestoring)
{
statusGTL = 0;
break;
}
yield return(new WaitForSeconds(0.125f));
}
X2.GetComponent <Image>().fillAmount = 1.0f;
break;
case 3:
for (int i = 0; i < 6; i++)
{
X3.GetComponent <Image>().fillAmount = 1.0f;
yield return(new WaitForSeconds(0.125f));
X3.GetComponent <Image>().fillAmount = 0.0f;
if (isRestoring)
{
statusGTL = 0;
break;
}
yield return(new WaitForSeconds(0.125f));
}
X3.GetComponent <Image>().fillAmount = 1.0f;
break;
}
isRegenGtl = false;
isRestoring = false;
}
/// <summary>
/// Return a string representation of this object.
/// </summary>
public override String ToString()
{
return(String.Format("Line2D: X1={0}, Y1={1}, X2={2}, Y2={3}",
X1.ToString(),
Y1.ToString(),
X2.ToString(),
Y2.ToString()));
}
static void Main(string[] args)
{
var x1 = new X();
var x2 = new X2();
x1.MethodX();
x2.MethodX();
}
public override string ToString()
{
string str = "{X1:" + X1.ToString()
+ ", X2:" + X2.ToString()
+ ", Y:" + Y.ToString()
+ ", Z:" + Z.ToString() + "}";
return("GSA Offset " + str);
}
public override string ToString()
{
string str = System.Environment.NewLine
+ "X1: " + X1.ToString()
+ ", X2: " + X2.ToString()
+ ", Y: " + Y.ToString()
+ ", Z: " + Z.ToString();
return("GSA Offset" + str);
}
public override int GetHashCode()
{
unchecked
{
int hashCode = X1.GetHashCode();
hashCode = (hashCode * 397) ^ X2.GetHashCode();
hashCode = (hashCode * 397) ^ X3.GetHashCode();
return(hashCode);
}
}
public override int GetHashCode()
{
var hashCode = 1982840186;
hashCode = hashCode * -1521134295 + X1.GetHashCode();
hashCode = hashCode * -1521134295 + X2.GetHashCode();
hashCode = hashCode * -1521134295 + Y1.GetHashCode();
hashCode = hashCode * -1521134295 + Y2.GetHashCode();
return(hashCode);
}
public override string ToString()
{
string str = "";
str += X1.ToString() + "\n";
str += X2.ToString() + "\n";
str += X3.ToString() + "\n";
str += $"Area = {Area.ToString("f3")}\nPerimetr = {Perimetr.ToString("f3")}\n";
return(str);
}
public static void SaveLog()
{
//创建文件夹
var dir = AppDomain.CurrentDomain.BaseDirectory + "Log";
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
//新文件则添加表头
var fileName = dir + "\\" + DateTime.Now.ToString("yyyy-MM-dd") + ".csv";
if (!File.Exists(fileName))
{
var sw = new StreamWriter(fileName, true);
var title = "时间,Y1,X4,X3,X2,X1,结果";
sw.WriteLine(title);
sw.Flush();
sw.Close();
}
var item = DateTime.Now.ToString("HH:mm:ss:fff")
+ "," + Y.ToString("f3")
+ "," + X1.ToString("f3")
+ "," + X2.ToString("f3")
+ "," + X3.ToString("f3")
+ "," + X4.ToString("f3");
//+ "," + WZ1.ToString("f3")
//+ "," + WZ2.ToString("f3")
//+ "," + WZ3.ToString("f3")
//+ "," + WZ11.ToString("f3")
//+ "," + WZ31.ToString("f3")
var sw2 = new StreamWriter(fileName, true);
sw2.WriteLine(item);
sw2.Flush();
sw2.Close();
//删除过期文件
var files = Directory.GetFiles(dir);
for (var i = 0; i < files.Length; i++)
{
var dt = File.GetCreationTime(files[i]);
var ts = DateTime.Now - dt;
if (ts.Days > 30)
{
File.Delete(files[i]);
}
}
}
public void getReport(double alpha)
{
Forms.RunningProcess.frmRunningProcessDialog rd = new Forms.RunningProcess.frmRunningProcessDialog(false);
rd.Text = "PLR Results";
rd.TopLevel = true;
rd.pgbProcess.Visible = false;
rd.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Sizable;
rd.addMessage("Iterations = " + NumberOfIterationsToConverge.ToString());
rd.addMessage("Convergence = " + Delta.ToString());
rd.addMessage("LogLikelihood = " + LogLikelihood.ToString());
rd.addMessage("Deviance = " + Deviance.ToString());
rd.addMessage("Likelihood Ratio Chi-squared = " + X2.ToString() + " DF = " + DegreesOfFredom.ToString() + " p-value = " + PValue.ToString());
rd.addMessage("\n\nClasses: " + String.Join(", ", Categories));
rd.addMessage("Reference Class = " + Categories[0]);
rd.addMessage("\nParameter coefficients:\n");
rd.addMessage("intercept, " + String.Join(", ", IndependentFieldNames));
for (int i = 0; i < Coefficients.Length; i++)
{
double[] c = Coefficients[i];
rd.addMessage(String.Join(" ", (from double d in c select d.ToString()).ToArray()));
}
rd.addMessage("\nParameter standard error:");
for (int i = 0; i < StandardError.Length; i++)
{
double[] c = StandardError[i];
rd.addMessage(String.Join(", ", (from double d in c select d.ToString()).ToArray()));
}
rd.addMessage("\nParameter Wald Chi-Squared:");
for (int i = 0; i < WaldStatistic.Length; i++)
{
double[] c = WaldStatistic[i];
rd.addMessage(String.Join(", ", (from double d in c select d.ToString()).ToArray()));
}
rd.addMessage("\nParameter Wald P-value:");
for (int i = 0; i < WaldPvalue.Length; i++)
{
double[] c = WaldPvalue[i];
rd.addMessage(String.Join(", ", (from double d in c select d.ToString()).ToArray()));
}
try
{
if (ModelHelper.chartingAvailable() && System.Windows.Forms.MessageBox.Show("Do you want to build probability graphs?", "Graphs", System.Windows.Forms.MessageBoxButtons.YesNo) == System.Windows.Forms.DialogResult.Yes)
{
regChart();
//if (mlr == null) mlr = buildModel();
}
}
catch
{
System.Windows.Forms.MessageBox.Show("Cannot create charts");
}
rd.Show();
rd.enableClose();
}
public override int GetHashCode()
{
int prime = 37;
int hash = 1;
hash = prime * hash + X1.GetHashCode();
hash = prime * hash + X2.GetHashCode();
hash = prime * hash + X3.GetHashCode();
hash = prime * hash + Y1.GetHashCode();
hash = prime * hash + Y2.GetHashCode();
return(prime * hash + Y3.GetHashCode());
}
/// <summary>
/// Gets the hash code for this <see cref='AbsoluteGraphicsPlatform.Metrics.AbsoluteLine'/>.
/// </summary>
public override int GetHashCode()
{
unchecked
{
return
(29 *
17 * X1.GetHashCode() *
17 * Y1.GetHashCode() *
17 * X2.GetHashCode() *
17 * Y2.GetHashCode());
}
}
protected override void Check()
{
var x1 = new X1();
var x2 = new X2();
var m = new Model();
m.AddRootComponents(new X3(x1, x2));
m.Bind(x1.RequiredPorts.M = x2.ProvidedPorts.M);
m.Seal();
m.Metadata.Bindings.Length.ShouldBe(1);
}
/// <summary>
/// Loads x2 and adds it to the window
/// </summary>
internal static void Loadx2()
{
x2 = new X2()
{
Focusable = false,
VerticalAlignment = VerticalAlignment.Top,
Visibility = Visibility.Collapsed,
HorizontalAlignment = HorizontalAlignment.Right
};
mainWindow.bg.Children.Add(x2);
}
public X3(X1 x1, X2 x2)
{
_x1 = x1;
_x2 = x2;
}
public A(int a, X2 x)
{
this.a = a;
this.x = x;
}
