public Difference(int line, TypeDifference type, string from, string to)
{
Line = line;
Type = type;
From = from;
To = to;
}
public DifferentiationResult FiniteDifferenceMethod(TypeDifference typeDifference, int degreeDerivates)
{
List <Point> derivativePoints = new List <Point>(points);
for (int i = 0; i < degreeDerivates; i++)
{
List <Point> tempResult = new List <Point>();
for (int j = 1; j < derivativePoints.Count - 1; j++)
{
if (typeDifference == TypeDifference.Left)
{
tempResult.Add(new Point(derivativePoints[j].X, (derivativePoints[j].Y - derivativePoints[j - 1].Y) / step));
}
if (typeDifference == TypeDifference.Right)
{
tempResult.Add(new Point(derivativePoints[j].X, (derivativePoints[j + 1].Y - derivativePoints[j].Y) / step));
}
if (typeDifference == TypeDifference.Center)
{
tempResult.Add(new Point(derivativePoints[j].X, (derivativePoints[j + 1].Y - derivativePoints[j - 1].Y) / (2 * step)));
}
}
derivativePoints = tempResult;
}
return(new DifferentiationResult(derivativePoints.ToArray(), AbsoluteDeviation(derivativePoints), StandartDeviation(derivativePoints)));
}
public Difference(TypeDifference type, string from, string to)
{
Type = type;
From = from;
To = to;
}
