/// <summary>
/// Clones itself
/// </summary>
/// <returns>A clone</returns>
public object Clone()
{
ElementaryRoot r = new ElementaryRoot();
r.arity = arity;
return(r);
}
/// <summary>
/// Calculates derivation
/// </summary>
/// <param name="tree">The function for derivation calculation</param>
/// <param name="variableName">Name of variable</param>
/// <returns>The derivation</returns>
public ObjectFormulaTree Derivation(ObjectFormulaTree tree, string variableName)
{
Double a = 0;
ObjectFormulaTree[] fc = new ObjectFormulaTree[2];
ObjectFormulaTree[] fd = new ObjectFormulaTree[2];
for (int i = 0; i < 2; i++)
{
fc[i] = tree[i];
fd[i] = fc[i].Derivation(variableName);
}
List <ObjectFormulaTree> list = new List <ObjectFormulaTree>();
IObjectOperation nom = new ElementaryBinaryOperation('-', new object[] { a, a });
List <ObjectFormulaTree> nomList = new List <ObjectFormulaTree>();
for (int i = 0; i < 2; i++)
{
List <ObjectFormulaTree> l = new List <ObjectFormulaTree>();
l.Add(fc[1 - i]);
l.Add(fd[i]);
IObjectOperation o = new ElementaryBinaryOperation('*', new object[] { a, a });
nomList.Add(new ObjectFormulaTree(o, l));
}
list.Add(new ObjectFormulaTree(nom, nomList));
List <ObjectFormulaTree> plusList = new List <ObjectFormulaTree>();
for (int i = 0; i < 2; i++)
{
List <ObjectFormulaTree> l = new List <ObjectFormulaTree>();
l.Add(fc[i]);
l.Add(new ObjectFormulaTree(new ElementaryRealConstant(2), new List <ObjectFormulaTree>()));
IObjectOperation o = ElementaryFunctionsCreator.Object.GetPowerOperation(a, a);
plusList.Add(new ObjectFormulaTree(o, l));
}
IObjectOperation plusOp = new ElementaryBinaryOperation('+', new object[] { a, a });
IObjectOperation denomOp = new ElementaryRoot();
List <ObjectFormulaTree> denomList = new List <ObjectFormulaTree>();
// denomList.Add(new ObjectFormulaTree(plusOp, plusList));
//list.Add(new ObjectFormulaTree(new ElementaryRoot(), denomList));
list.Add(new ObjectFormulaTree(plusOp, plusList));
return(new ObjectFormulaTree(ElementaryFraction.Object, list));
}