/// <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)
{
if (deriv)
{
throw new Exception("Could not calculate second derivation");
}
ElementaryUnaryOperation der = new ElementaryUnaryOperation(unary, index);
der.deriv = true;
List <ObjectFormulaTree> list = new List <ObjectFormulaTree>();
List <ObjectFormulaTree> lFirst = new List <ObjectFormulaTree>();
lFirst.Add(tree[0]);//.Clone() as ObjectFormulaTree);
list.Add(new ObjectFormulaTree(der, lFirst));
list.Add(tree[0].Derivation(variableName));
Double a = 0;
return(new ObjectFormulaTree(new ElementaryBinaryOperation('*', new object[] { a, a }), list));
}
/// <summary>
/// Sets unary table on tree
/// </summary>
/// <param name="tree">Tree to set unary</param>
/// <param name="unary">Unary table</param>
public static void SetUnary(ObjectFormulaTree tree, Dictionary <int, IUnary> unary)
{
if (tree.Operation is ElementaryUnaryOperation)
{
ElementaryUnaryOperation op = tree.Operation as ElementaryUnaryOperation;
op.Unary = unary;
}
else if (tree.Operation is ArrayOperation)
{
ArrayOperation ao = tree.Operation as ArrayOperation;
if (ao.SingleOperation is ElementaryUnaryOperation)
{
ElementaryUnaryOperation eo = ao.SingleOperation as ElementaryUnaryOperation;
eo.Unary = unary;
}
}
for (int i = 0; i < tree.Count; i++)
{
SetUnary(tree[i], unary);
}
}
/// <summary>
/// Gets unary table of tree
/// </summary>
/// <param name="tree">The tree</param>
/// <param name="table">The table</param>
public static void GetUnaryTable(ObjectFormulaTree tree, Dictionary <int, IUnary> table)
{
if (tree.Operation is ElementaryUnaryOperation)
{
ElementaryUnaryOperation op = tree.Operation as ElementaryUnaryOperation;
table[op.index] = op.unary;
}
if (tree.Operation is ArrayOperation)
{
ArrayOperation op = tree.Operation as ArrayOperation;
IObjectOperation so = op.SingleOperation;
if (so is ElementaryUnaryOperation)
{
ElementaryUnaryOperation sop = so as ElementaryUnaryOperation;
table[sop.index] = sop.unary;
}
}
for (int i = 0; i < tree.Count; i++)
{
GetUnaryTable(tree[i], table);
}
}
/// <summary>
/// Gets unary indexes of tree
/// </summary>
/// <param name="tree">The tree</param>
/// <param name="list">List of indexes</param>
public static void GetUnaryIndexes(ObjectFormulaTree tree, List <int> list)
{
try
{
if (tree.Operation is ElementaryUnaryOperation)
{
ElementaryUnaryOperation op = tree.Operation as ElementaryUnaryOperation;
int indx = op.index;
if (!list.Contains(indx))
{
list.Add(indx);
}
}
if (tree.Operation is ArrayOperation)
{
ArrayOperation op = tree.Operation as ArrayOperation;
IObjectOperation so = op.SingleOperation;
if (so is ElementaryUnaryOperation)
{
ElementaryUnaryOperation sop = so as ElementaryUnaryOperation;
int ind = sop.index;
if (!list.Contains(ind))
{
list.Add(ind);
}
}
}
for (int i = 0; i < tree.Count; i++)
{
GetUnaryIndexes(tree[i], list);
}
}
catch (Exception)
{
}
}
