private void TheoreticalError(IApproximateCalculate function)
{
double result = rightBorder - leftBorder;
double h = (rightBorder - leftBorder) / numberOfParts;
double constant;
if (function is QuadratureFormulaLeftRectangles || function is QuadratureFormulaRightRectangles)
{
constant = 1.0 / 2.0;
result *= constant * h;
}
else if (function is QuadratureFormulaMediumRectangles)
{
constant = 1.0 / 24.0;
result *= constant * h * h;
}
else if (function is QuadratureFormulaTrapezoid)
{
constant = 1.0 / 12.0;
result *= constant * h * h;
}
else
{
constant = 1.0 / 2880.0;
result *= constant * Math.Pow(h, 4);
}
Console.WriteLine($"Теоретическая погрешность: {result * (1 + Math.Exp(rightBorder))}\n");
}
private void AbsoluteError(IApproximateCalculate function)
{
Console.Write("Абсолютная фактическая погрешность: ");
Console.WriteLine(Math.Abs(function.Value - PreciselyValue()));
}
