public void Get_derivative_simplified2()
{
BigFunction func = new BigFunction();
string input = "/(+(*(7,x),+(-(6,-(*(8,x),*(4,x))),*(n(12),x))),*(2,x))";
func.RootFunc = func.Insert(ref input);
OxyPlot.WindowsForms.PlotView pv1 = new PlotView();
pv1.Model = new PlotModel {
};
FunctionSeries serie = new FunctionSeries();
serie = func.GetFunctionSerieForDerivativeAnalyticallySimplify();
pv1.Model.Series.Add(serie);
Assert.AreEqual(func.ParseToString(func.RootFunc.GetDerivativeAnalytically().SimplifyFunction()), "((((7 + (( - 4) + 12)) * (2 * x )) - (((7 * x ) + ((6 - ((8 * x ) - (4 * x ))) + (12 * x ))) * 2)) / ((2 * x ) ^ 2))");
}
public void Get_derivative_simplified1()
{
BigFunction func = new BigFunction();
string input = "-(*(/(c(*(r(-5.7),x)),s(l(+(n(27),*(3,^(p,8)))))),!(4)),e(-2))";
func.RootFunc = func.Insert(ref input);
OxyPlot.WindowsForms.PlotView pv1 = new PlotView();
pv1.Model = new PlotModel {
};
FunctionSeries serie = new FunctionSeries();
serie = func.GetFunctionSerieForDerivativeAnalyticallySimplify();
pv1.Model.Series.Add(serie);
Assert.AreEqual(func.ParseToString(func.RootFunc.GetDerivativeAnalytically().SimplifyFunction()), "((((5.7 * sin ((-5.7 * x ))) * sin ( ln ((27 + (3 * ( p ^ 8)))))) / ( sin ( ln ((27 + (3 * ( p ^ 8))))) ^ 2)) * 4 ! )");
}
public void Parse_to_string()
{
var form = new btnAddPoint();
BigFunction func = new BigFunction();
string input = "*(/(s(x),+(c(x),l(-(*(p,x),4)))),e(!(2)))";
func.RootFunc = func.Insert(ref input);
OxyPlot.WindowsForms.PlotView pv1 = new PlotView();
pv1.Model = new PlotModel {
};
FunctionSeries serie = new FunctionSeries();
serie = func.GetFunctionSerieMainFunction();
pv1.Model.Series.Add(serie);
func.GenerateTextFile(func.RootFunc);
Assert.AreEqual(func.ParseToString(func.RootFunc), "(( sin ( x ) / ( Cos ( x ) + ln ((( p * x ) - 4)))) * e (2 ! ))");
}
public void Calculate_integral()
{
BigFunction func = new BigFunction();
string input = "*(/(c(*(r(-5.7),x)),s(l(+(n(27),*(3,^(x,8)))))),!(4))";
func.RootFunc = func.Insert(ref input);
OxyPlot.WindowsForms.PlotView pv1 = new PlotView();
pv1.Model = new PlotModel {
};
double result = 0;
AreaSeries serie = new AreaSeries();
serie = func.GetFunctionSerieIntegral(-10, 10, ref result);
pv1.Model.Series.Add(serie);
Assert.AreEqual <double>(Math.Round(result), -5860);
}
public void Get_derivative()
{
BigFunction func = new BigFunction();
string input = "-(*(/(c(*(r(-5.7),x)),s(l(+(n(27),*(3,^(p,8)))))),!(4)),e(-2))";
func.RootFunc = func.Insert(ref input);
OxyPlot.WindowsForms.PlotView pv1 = new PlotView();
pv1.Model = new PlotModel {
};
FunctionSeries serie1 = new FunctionSeries();
serie1 = func.GetFunctionSerieForDerivativeAnalytically();
FunctionSeries serie2 = new FunctionSeries();
serie2 = func.GetFunctionSerieForDerivativeNewton();
pv1.Model.Series.Add(serie1);
pv1.Model.Series.Add(serie2);
Assert.AreEqual(func.ParseToString(func.RootFunc.GetDerivativeAnalytically()), "((((((((-1 * ((0 * x ) + (-5.7 * 1))) * sin ((-5.7 * x ))) * sin ( ln ((27 + (3 * ( p ^ 8)))))) - ( Cos ((-5.7 * x )) * (((0 + ((0 * ( p ^ 8)) + (3 * ((8 * ( p ^ 7)) * 0)))) / (27 + (3 * ( p ^ 8)))) * Cos ( ln ((27 + (3 * ( p ^ 8)))))))) / ( sin ( ln ((27 + (3 * ( p ^ 8))))) ^ 2)) * 4 ! ) + (( Cos ((-5.7 * x )) / sin ( ln ((27 + (3 * ( p ^ 8)))))) * 0)) - (0 * e (2)))");
}
public void Check_McLaurinSerie()
{
OxyPlot.WindowsForms.PlotView pv1 = new PlotView();
pv1.Model = new PlotModel {
};
BigFunction func = new BigFunction();
string input = "+(/(s(x),c(x)),l(5))";
func.RootFunc = func.Insert(ref input);
List <double> vectors = func.GetCoefficientMcLaurin(8);
List <double> coeffi = new List <double> {
Math.Log(5), 1, 0, 2, 0, 16, 0, 272, 0
};
FunctionSeries serie = new FunctionSeries();
serie = func.GetFunctionSeriesMcLaurinSeriesAnalytically(8);
pv1.Model.Series.Add(serie);
Assert.IsTrue(vectors.SequenceEqual(coeffi));
}