/// <summary>
/// Adding and Substraction method
/// </summary>
/// <param name="p1"></param>
/// <param name="p2"></param>
/// <param name="operation"></param>
/// <returns></returns>
private static CustomPolinomial SummatorOfPolinomials(CustomPolinomial p1, CustomPolinomial p2, Func <double, double, double> operation)
{
int countOfElements = p1.polinomialElements.Count + p2.polinomialElements.Count;
int[] powers = new int[countOfElements];
double[] coefficient = new double[countOfElements];
for (int i = 0; i < p1.polinomialElements.Count; i++)
{
int position = p1.polinomialElements.Keys.ElementAt(i);
powers[i] = position;
if (p2.polinomialElements.Keys.Contains(position))
{
coefficient[i] = operation(p1.polinomialElements.Values.ElementAt(i), p2.polinomialElements[position]);
}
else
{
coefficient[i] = p1.polinomialElements.Values.ElementAt(i);
}
}
int adder = p1.polinomialElements.Count;
for (int i = 0; i < p2.polinomialElements.Count; i++)
{
int power = p2.polinomialElements.Keys.ElementAt(i);
if (!p1.polinomialElements.Keys.Contains(power))
{
powers[i + adder] = power;
coefficient[i + adder] = operation(0, p2.polinomialElements[power]);
}
}
return(new CustomPolinomial(powers, coefficient));
}
public bool Equals(CustomPolinomial polinomial)
{
if (this.polinomialElements.Count != polinomial.polinomialElements.Count)
{
return(false);
}
foreach (var element in polinomial.polinomialElements)
{
if (this.polinomialElements[element.Key] != element.Value)
{
return(false);
}
}
return(true);
}
/// <summary>
/// Multiplication of 2 polynoms
/// </summary>
/// <param name="p1"></param>
/// <param name="p2"></param>
/// <returns></returns>
private static CustomPolinomial MultiplyOfPolinomials(CustomPolinomial p1, CustomPolinomial p2)
{
int countOfElements = p1.polinomialElements.Count * p2.polinomialElements.Count + 1;
int[] powers = new int[countOfElements];
double[] coefficient = new double[countOfElements];
for (int i = 0; i < p1.polinomialElements.Count; i++)
{
for (int j = 0; j < p2.polinomialElements.Count; j++)
{
int resultPower = p1.polinomialElements.Keys.ElementAt(i) + p2.polinomialElements.Keys.ElementAt(j);
double resultCoefficieent = p1.polinomialElements.Values.ElementAt(i) * p2.polinomialElements.Values.ElementAt(j);
powers[i * p2.polinomialElements.Count + j] = resultPower;
coefficient[i * p2.polinomialElements.Count + j] += resultCoefficieent;
}
}
return(new CustomPolinomial(powers, coefficient));
}
