public ActionResult DeleteConfirmed(int id)
{
Taylor taylor = db.Taylors.Find(id);
db.Taylors.Remove(taylor);
db.SaveChanges();
return(RedirectToAction("Index"));
}
public ActionResult Edit([Bind(Include = "Id,CustomerName,CellNo,KamezLenght,Tera,Galla,Kandha,Baghal,Bazoo,Kohni,Chest,Kamar,Ghera,ShalwaarLenght,Aasan,Ponchha,Palla,Kundha,Kundhi,Saali,Kaff,Button,Pocket,Sticker,TotalSuit,Gheras")] Taylor taylor)
{
if (ModelState.IsValid)
{
db.Entry(taylor).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(taylor));
}
// GET: Taylors/Edit/5
public ActionResult Edit(int?id)
{
if (id == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
Taylor taylor = db.Taylors.Find(id);
if (taylor == null)
{
return(HttpNotFound());
}
return(View(taylor));
}
static void Main(string[] args)
{
var x = SymbolicExpression.Variable("x");
Console.WriteLine(Taylor.GetTaylor(6,
x,
0,
SymbolicExpression.E.Pow(x).Multiply(x.Sin())
));
//---------
// 2. Užrašykite liekamąjį narį.
// Rn = M * (x-a)^(n+1) / (n+1)!
// M = f(n+1)(x)
// 3. Įvertinkite liekamąjį narį.
Lagrange.GetError(-0.5, 0.5, 5);
Lagrange.GetError(-0.1, 0.1, 5);
Lagrange.GetError(-0.001, 0.001, 5);
}
private void Button_Click_Calc(object sender, RoutedEventArgs e)
{
string inputNum_string = Input_TextBox.Text;
Number inputNum = new Number(inputNum_string, false, 0, 0);
string inputAccuracy_string = Accuracy_TextBox.Text;
int accuracy = Convert.ToInt32(inputAccuracy_string);
System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch();
//进行计算
RangeAssist rangeAssist = new RangeAssist(inputNum, accuracy);
//泰勒展开法进行计算
stopwatch.Start();
Taylor TaylorCal = new Taylor(rangeAssist.numConverted, accuracy);
Number resultTaylor = rangeAssist.NumRecover(TaylorCal.TaylorCalculate());
stopwatch.Stop();
float taylorTime = (float)stopwatch.ElapsedMilliseconds / 1000;
//外推加速法进行计算
stopwatch.Start();
Romberg RombergCal = new Romberg(rangeAssist.numConverted, accuracy);
Number resultRomberg = rangeAssist.NumRecover(RombergCal.RombergCalculate());
stopwatch.Stop();
float rombergTime = (float)stopwatch.ElapsedMilliseconds / 1000;
//牛顿法进行计算
stopwatch.Start();
Newton NewtonCal = new Newton(rangeAssist.numConverted, accuracy);
Number resultNewton = rangeAssist.NumRecover(NewtonCal.NewtonCalculate());
stopwatch.Stop();
float newtonTime = (float)stopwatch.ElapsedMilliseconds / 1000;
//显示字符串
//泰勒法
string resultTaylor_string = "";
if (resultTaylor.sign == -1)
{
resultTaylor_string += "-";
}
for (int i = 0; i < resultTaylor.intLength; i++)
{
resultTaylor_string += resultTaylor.intPart[i].ToString();
}
resultTaylor_string += ".";
for (int i = 0; i < resultTaylor.decLength; i++)
{
resultTaylor_string += resultTaylor.decPart[i].ToString();
}
Taylor_TextBox.Text = resultTaylor_string;
TaylorTime_TextBox.Text = taylorTime.ToString() + "秒";
//外推加速法
string resultRomberg_string = "";
if (resultRomberg.sign == -1)
{
resultRomberg_string += "-";
}
for (int i = 0; i < resultRomberg.intLength; i++)
{
resultRomberg_string += resultRomberg.intPart[i].ToString();
}
resultRomberg_string += ".";
for (int i = 0; i < resultRomberg.decLength; i++)
{
resultRomberg_string += resultRomberg.decPart[i].ToString();
}
Romberg_TextBox.Text = resultRomberg_string;
RombergTime_TextBox.Text = rombergTime.ToString() + "秒";
//牛顿法
string resultNewton_string = "";
if (resultNewton.sign == -1)
{
resultNewton_string += "-";
}
for (int i = 0; i < resultNewton.intLength; i++)
{
resultNewton_string += resultNewton.intPart[i].ToString();
}
resultNewton_string += ".";
for (int i = 0; i < resultNewton.decLength; i++)
{
resultNewton_string += resultNewton.decPart[i].ToString();
}
Newton_TextBox.Text = resultNewton_string;
NewtonTime_TextBox.Text = newtonTime.ToString() + "秒";
}
private void Button_Click_Calc(object sender, RoutedEventArgs e)
{
string inputNum_string = Input_TextBox.Text;
Number inputNum = new Number(inputNum_string, false, 0, 0);
string inputAccuracy_string = Accuracy_TextBox.Text;
int accuracy = Convert.ToInt32(inputAccuracy_string);
System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch();
//进行计算
RangeAssist rangeAssist = new RangeAssist(inputNum, accuracy);
//泰勒展开法进行计算
stopwatch.Start();
Taylor TaylorCal = new Taylor(rangeAssist.numConverted, accuracy);
Number resultTaylor = rangeAssist.NumRecover(TaylorCal.TaylorCalculate());
stopwatch.Stop();
float taylorTime = (float)stopwatch.ElapsedMilliseconds / 1000;
//外推加速法进行计算
stopwatch.Start();
Romberg RombergCal = new Romberg(rangeAssist.numConverted, accuracy);
Number resultRomberg = rangeAssist.NumRecover(RombergCal.RombergCalculate());
stopwatch.Stop();
float rombergTime = (float)stopwatch.ElapsedMilliseconds / 1000;
//牛顿法进行计算
stopwatch.Start();
Newton NewtonCal = new Newton(rangeAssist.numConverted, accuracy);
Number resultNewton = rangeAssist.NumRecover(NewtonCal.NewtonCalculate());
stopwatch.Stop();
float newtonTime = (float)stopwatch.ElapsedMilliseconds / 1000;
//显示字符串
//泰勒法
string resultTaylor_string = "";
if (resultTaylor.sign == -1)
{
resultTaylor_string += "-";
}
for (int i = 0; i < resultTaylor.intLength; i++)
{
resultTaylor_string += resultTaylor.intPart[i].ToString();
}
resultTaylor_string += ".";
for (int i = 0; i < resultTaylor.decLength; i++)
{
resultTaylor_string += resultTaylor.decPart[i].ToString();
}
Taylor_TextBox.Text = resultTaylor_string;
TaylorTime_TextBox.Text = taylorTime.ToString() + "秒";
//外推加速法
string resultRomberg_string = "";
if (resultRomberg.sign == -1)
{
resultRomberg_string += "-";
}
for (int i = 0; i < resultRomberg.intLength; i++)
{
resultRomberg_string += resultRomberg.intPart[i].ToString();
}
resultRomberg_string += ".";
for (int i = 0; i < resultRomberg.decLength; i++)
{
resultRomberg_string += resultRomberg.decPart[i].ToString();
}
Romberg_TextBox.Text = resultRomberg_string;
RombergTime_TextBox.Text = rombergTime.ToString() + "秒";
//牛顿法
string resultNewton_string = "";
if (resultNewton.sign == -1)
{
resultNewton_string += "-";
}
for (int i = 0; i < resultNewton.intLength; i++)
{
resultNewton_string += resultNewton.intPart[i].ToString();
}
resultNewton_string += ".";
for (int i = 0; i < resultNewton.decLength; i++)
{
resultNewton_string += resultNewton.decPart[i].ToString();
}
Newton_TextBox.Text = resultNewton_string;
NewtonTime_TextBox.Text = newtonTime.ToString() + "秒";
}
private void InitializeComponent()
{
this.BackColor = Color.White;
this.components = new Container();
this.AutoScaleMode = AutoScaleMode.Font;
this.ClientSize = new Size(800, 450);
this.Text = "Form1";
this.plot0 = new PlotView();
InitializePlotProps(plot0, "a) y=(e^x) sin x", 0);
InitializePlotModel(plot0, Constants.Function);
this.Controls.Add(this.plot0);
this.plot1 = new PlotView();
InitializePlotProps(plot1, "b) kai imamas narys tik su x0", 1);
Func <double, double> taylorWithX0 =
(double x) => Taylor.GetNthTaylorFormulaCoefficient(0); // will result in a constant 0
InitializePlotModel(plot1, taylorWithX0);
this.Controls.Add(this.plot1);
this.plot2 = new PlotView();
InitializePlotProps(plot2, "c) kai imami nariai su x0 ir x1", 2);
Func <double, double> taylorWithX1 =
(double x) =>
Taylor.GetNthTaylorFormulaCoefficient(0) +
Taylor.GetNthTaylorFormulaCoefficient(1) * x;
InitializePlotModel(plot2, taylorWithX1);
this.Controls.Add(this.plot2);
this.plot3 = new PlotView();
InitializePlotProps(plot3, "d) kai imami nariai su x0, x1 ir x2", 3);
Func <double, double> taylorWithX2 =
(double x) =>
Taylor.GetNthTaylorFormulaCoefficient(0) +
Taylor.GetNthTaylorFormulaCoefficient(1) * x +
Taylor.GetNthTaylorFormulaCoefficient(2) * Math.Pow(x, 2);
InitializePlotModel(plot3, taylorWithX2);
this.Controls.Add(this.plot3);
this.plot4 = new PlotView();
InitializePlotProps(plot4, "d) kai imami nariai su x0, x1, x2 ir x3", 4);
Func <double, double> taylorWithX3 = (double x) =>
Taylor.GetNthTaylorFormulaCoefficient(0) +
Taylor.GetNthTaylorFormulaCoefficient(1) * x +
Taylor.GetNthTaylorFormulaCoefficient(2) * Math.Pow(x, 2) +
Taylor.GetNthTaylorFormulaCoefficient(3) * Math.Pow(x, 3);
InitializePlotModel(plot4, taylorWithX3);
this.Controls.Add(this.plot4);
this.plot5 = new PlotView();
InitializePlotProps(plot5, "d) kai imami nariai su x0, x1, x2, x3 ir x4", 5);
Func <double, double> taylorWithX4 =
(double x) =>
Taylor.GetNthTaylorFormulaCoefficient(0) +
Taylor.GetNthTaylorFormulaCoefficient(1) * x +
Taylor.GetNthTaylorFormulaCoefficient(2) * Math.Pow(x, 2) +
Taylor.GetNthTaylorFormulaCoefficient(3) * Math.Pow(x, 3) +
Taylor.GetNthTaylorFormulaCoefficient(4) * Math.Pow(x, 4);
InitializePlotModel(plot5, taylorWithX4);
this.Controls.Add(this.plot5);
this.plot6 = new PlotView();
InitializePlotProps(plot6, "d) kai imami nariai su x0, x1, x2, x3, x4 ir x5", 6);
Func <double, double> taylorWithX5 = (double x) =>
Taylor.GetNthTaylorFormulaCoefficient(0) +
Taylor.GetNthTaylorFormulaCoefficient(1) * x +
Taylor.GetNthTaylorFormulaCoefficient(2) * Math.Pow(x, 2) +
Taylor.GetNthTaylorFormulaCoefficient(3) * Math.Pow(x, 3) +
Taylor.GetNthTaylorFormulaCoefficient(4) * Math.Pow(x, 4) +
Taylor.GetNthTaylorFormulaCoefficient(5) * Math.Pow(x, 5);
InitializePlotModel(plot6, taylorWithX5);
this.Controls.Add(this.plot6);
}
public void factTest()
{
Assert.AreEqual(6, Taylor.fact(3));
Assert.AreEqual(1, Taylor.fact(0));
}
public void SinTaylorTest()
{
Assert.AreEqual(0, Taylor.SinTaylor(0, 4));
Assert.AreEqual(1, Math.Ceiling(Taylor.SinTaylor(2, 3)));
}
public void CosTaylorTest()
{
Assert.AreEqual(1, Taylor.CosTaylor(0, 4));
Assert.AreEqual(0, Math.Ceiling(Taylor.CosTaylor(2, 3)));
}
public void ETaylorTest()
{
Assert.AreEqual(5, Taylor.ETaylor(2, 3));
Assert.AreEqual(1, Taylor.ETaylor(0, 4));
}
