public void USDtoCAD()
{
var result = mp.Evaluate("1 usd to cad");
Assert.AreEqual(1, result.Value);
Assert.AreEqual(CurrencyUnits.CAD, result.DesiredUnit);
}
public void NewOperatorParsed()
{
var p = new MathParser();
p.Operators.Add(new BinaryOperator<double>("$", 2, (x, y) =>
{
p.Manipulate("var x = " + x);
p.Manipulate("var y = " + y);
return p.Evaluate("x * y");
}));
Assert.AreEqual(p.Evaluate("3 $ 4"), 12);
}
public static double Integral(string Expression, double LowerIndex, double UpperIndex, char IterationVariable, int Kind)
{
var parser = new MathParser();
var Var = new Variable<double>(IterationVariable.ToString());
parser.Variables.Add(Var);
parser.Parse(Expression);
Func<double,double> proc = x =>
{
Var.Value = x;
return parser.Evaluate();
};
switch (Kind)
{
case 0:
return Integration.Trapezoidal(LowerIndex, UpperIndex, proc);
case 1:
return Integration.LeftHand(LowerIndex, UpperIndex, proc);
default:
return Integration.MidPoint(LowerIndex, UpperIndex, proc);
}
}
public void TestMathParser()
{
Assert.AreEqual(MathParser.Evaluate(0, 0, MathParser.ConvertToRPN("3^4")), 81f, 0.01, "Math Parser Test 1 Failed");
Assert.AreEqual(MathParser.Evaluate(0, 0, MathParser.ConvertToRPN("(2^2)^(2^2)")), 256f, 0.01, "Math Parser Test 2 Failed");
Assert.AreEqual(MathParser.Evaluate(0, 0, MathParser.ConvertToRPN("0.0001+(-0.4)")), -0.4f, 0.01, "Math Parser Test 3 Failed");
Assert.AreEqual(MathParser.Evaluate(2, 2, MathParser.ConvertToRPN("0.0001+(x * y)")), 4f, 0.01, "Math Parser Test 4 Failed");
}
public void NewOperator()
{
var p = new MathParser();
p.Operators.Add(new BinaryOperator<double>("$", 2, (x, y) => x * y));
Assert.AreEqual(p.Evaluate("3 $ 4"), 12);
}
public static double Sigma(string Expression, double LowerIndex, double UpperIndex, char IterationVariable, double Step)
{
double Result = 0;
var parser = new MathParser();
var Var = new Variable<double>(IterationVariable.ToString());
parser.Variables.Add(Var);
parser.Parse(Expression);
for (var i = LowerIndex; i <= UpperIndex; i += Step)
{
Var.Value = i;
Result += parser.Evaluate();
}
return Result;
}
/// <summary>
///
/// </summary>
/// <param name="source"></param>
/// <param name="targetType"></param>
/// <exception cref="ArgumentNullException"/>
/// <exception cref="ConverterException"/>
/// <exception cref="FormatException"/>
/// <exception cref="OverflowException"/>
public object Convert(object source, Type targetType)
{
if (source is null)
{
throw new ArgumentNullException(nameof(source));
}
if (targetType is null)
{
throw new ArgumentNullException(nameof(targetType));
}
if (source is string value)
{
if (targetType.IsEnum)
{
if (long.TryParse(value, out long enumValue))
{
return(Enum.ToObject(targetType, enumValue));
}
else
{
return(Enum.Parse(targetType, value, true));
}
}
else if (targetType == typeof(int))
{
return(MathParser.Evaluate(value).AsInt());
}
else if (targetType == typeof(uint))
{
return(MathParser.Evaluate(value).AsUInt());
}
else if (targetType == typeof(float))
{
return(MathParser.Evaluate(value).AsSingle());
}
else if (targetType == typeof(double))
{
return(MathParser.Evaluate(value).AsDouble());
}
else if (targetType == typeof(byte))
{
return(MathParser.Evaluate(value).AsByte());
}
else if (targetType == typeof(sbyte))
{
return(MathParser.Evaluate(value).AsSByte());
}
else if (targetType == typeof(short))
{
return(MathParser.Evaluate(value).AsShort());
}
else if (targetType == typeof(ushort))
{
return(MathParser.Evaluate(value).AsUShort());
}
else if (targetType == typeof(long))
{
return(MathParser.Evaluate(value).AsLong());
}
else if (targetType == typeof(ulong))
{
return(MathParser.Evaluate(value).AsULong());
}
else if (targetType == typeof(decimal))
{
return(MathParser.Evaluate(value).AsDecimal());
}
else if (targetType == typeof(bool))
{
return(bool.Parse(value));
}
else if (targetType == typeof(Unit))
{
if (Unit.TryParse(value, out var unit))
{
return(unit);
}
}
else if (targetType == typeof(Thickness))
{
if (Thickness.TryParse(value, out var thickness))
{
return(thickness);
}
}
else if (targetType == typeof(Color))
{
if (Color.TryParse(value, out var color))
{
return(color);
}
}
else if (targetType == typeof(Index))
{
return(ParseIndex(value));
}
else if (targetType == typeof(Range))
{
var split = value.Split('-', StringSplitOptions.RemoveEmptyEntries);
if (split.Length == 1)
{
var index = ParseIndex(split[0]);
return(index..index);
}
else if (split.Length == 2)
{
return(ParseIndex(split[0])..ParseIndex(split[1]));
}
else
{
throw new ConverterException($"Cannot convert '{value}' to range.");
}
}
}
throw new ConverterException(source.GetType(), targetType);
}
public void BitAsBit()
{
var result = mp.Evaluate("1bit");
Assert.AreEqual((decimal)1 / 8, result.Value);
Assert.AreEqual("1 Bit", result.ToString());
}
public void HexPlusHex()
{
Assert.AreEqual(0x1 + 0x1, mp.Evaluate("0x1 + 0x1").Value);
}
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Îáðàáîòêà íàæàòèé íà êàíâàñ
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
/*
* Íàæàòèå ËÊÌ íà êàíâàñ
*/
private void ic_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
var mousePoint = Mouse.GetPosition(this);
switch (stateCursor)
{
case State.Ellipse:
figureStart = mousePoint;
ellipse = getNewEllpse(mousePoint, mousePoint, getAllColor());
ic.Children.Add(ellipse);
break;
case State.Rectangle:
figureStart = mousePoint;
rectangle = getNewRectangle(mousePoint, mousePoint, getAllColor());
ic.Children.Add(rectangle);
break;
case State.Line:
line = getNewLine(mousePoint, mousePoint, getAllColor());
ic.Children.Add(line);
break;
case State.Pen:
if (isPaint)
{
return;
}
var linePen = getNewLine(mousePoint, mousePoint, getAllColor());
prev = mousePoint;
ic.Children.Add(linePen);
break;
case State.Eraser:
if (isPaint)
{
return;
}
var lineEraser = getNewLine(mousePoint, mousePoint, Color.FromRgb(255, 255, 255));
prev = mousePoint;
ic.Children.Add(lineEraser);
break;
case State.Graph:
mousePoint1 = mousePoint;
MathBoard.GraphParserWindow parsG = new MathBoard.GraphParserWindow(mousePoint);
parsG.Owner = this;
parsG.ShowDialog();
if (parsG.closeFlag)
{
return;
}
parsG.closeFlag = true;
string formula = parsG.InputTextBox.Text;
List <Point> points = new List <Point>();
MathParser mp = new MathParser(Mode.GRAD);
MathExpression = formula;
for (double i = START_X; i <= END_X; i += STEP)
{
string temp = "";
temp = MathExpression.Replace("exp", "e_p");
temp = temp.Replace("x", i.ToString());
temp = temp.Replace("e_p", "exp");
if (mp.Evaluate(temp))
{
if ((mp.Result < 10 && mp.Result > -10) && (i < 10 && i > -10))
{
Point point = new Point(i, mp.Result);
points.Add(point);
}
}
}
DrawCoordinatePlane();
DrawFunctionGraph(points);
setStateCursor(State.None);
break;
case State.Formula:
MathBoard.FormulaParserWindow pars = new MathBoard.FormulaParserWindow();
pars.Owner = this;
pars.ShowDialog();
if (pars.imageCanvas.Source == null)
{
setStateCursor(State.None);
return;
}
if (pars.saveFlag)
{
setStateCursor(State.None);
pars.imageCanvas = null;
pars.saveFlag = false;
return;
}
Image image = new Image()
{
Source = pars.savePng,
Margin = new Thickness(mousePoint.X, mousePoint.Y - 25, 100, 100)
};
ic.Children.Add(image);
setStateCursor(State.None);
break;
case State.Text:
EnteringText x = new EnteringText();
x.ShowDialog();
if (x.DialogResult == true)
{
string s = x.text.Text;
TextBlock TB = new TextBlock()
{
Margin = new Thickness(mousePoint.X, mousePoint.Y - 80, 0, 0),
FontSize = getStroke()
};
TB.Text = s;
ic.Children.Add(TB);
}
break;
case State.Image:
OpenFileDialog myOpenFileDialog = new OpenFileDialog();
myOpenFileDialog.Filter = "Image files (*.jpg, *.jpeg, *.jpe, *.jfif, *.png) | *.jpg; *.jpeg; *.jpe; *.jfif; *.png";
if (myOpenFileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
BitmapImage imageToCanvas = new BitmapImage(new Uri(myOpenFileDialog.FileName, UriKind.Absolute));
Image imageControl = new Image()
{
Source = imageToCanvas,
Margin = new Thickness(mousePoint.X, mousePoint.Y - 80, 0, 0),
Width = 200,
Height = 200
};
ic.Children.Add(imageControl);
}
break;
}
isPaint = true;
}
public void InvalidEvaluation(string input)
{
Assert.ThrowsAny <Exception>(() => MathParser.Evaluate(input));
}
public void TestEvaluation(string input, double result)
{
var output = MathParser.Evaluate(input).AsDouble();
Assert.Equal(result, output, 3);
}
public void ACosUnitTestValid()
{
Assert.AreEqual((decimal)Math.Acos(.001), mp.Evaluate("Acos(.001)").Value);
Assert.AreEqual("1.569796", mp.Evaluate("Acos(.001)").ToString());
}
public void LongToStringTest()
{
Assert.AreEqual("helo", mp.Evaluate("1751477359 as string").ToString());
}
public void VolumeGallonToWeightOunces()
{
Assert.AreEqual("128.000984 Ounces", mp.Evaluate("1 gallon to ounces").ToString());
}
public void TimeTest()
{
Assert.AreEqual(60, Math.Round(mp.Evaluate("1 minute as seconds").Value, 6));
}
public void CtoFConvert()
{
Assert.AreEqual("98.6 Fahrenheit", mp.Evaluate("37c to f").ToString());
}
public void SimpleDistanceConvert()
{
Assert.AreEqual("12 Inches", mp.Evaluate("1 foot to inches").ToString());
Assert.AreEqual("12 Inches", mp.Evaluate("1' to inches").ToString());
}