/// <inheritdoc/>
public override ExpNode Execute(AdditionOperNode node)
{
// Sum rule
for (int i = 0; i < node.ChildCount; i++)
{
ExpNode diffChild = node.GetChild(i).Execute(this);
node.ReplaceChild(diffChild, i);
}
return(node);
}
/// <inheritdoc/>
public override ExpNode Execute(AdditionOperNode node)
{
double valueProg = 0;
for (int i = 0; i < node.ChildCount; i++)
{
ExpNode simpleChild = node.GetChild(i).Execute(this);
if (simpleChild is NumericalValueNode nvNode)
{
valueProg += nvNode.DoubleValue;
node.RemoveChild(i);
i--;
}
else if (simpleChild is AdditionOperNode aNode)
{
aNode.TransferChildren(node);
node.RemoveChild(i);
i--;
}
else
{
node.ReplaceChild(simpleChild, i);
}
}
if (node.ChildCount == 0 || valueProg != 0)
{
node.AddChild(QuickOpers.MakeNumericalNode(valueProg));
}
AdditionHelpers.SimplfiyATerms(node);
if (node.ChildCount == 0)
{
return(QuickOpers.MakeNumericalNode(0));
}
else if (node.ChildCount == 1)
{
return(node.GetChild(0));
}
return(AdditionHelpers.SumTensors(node, this));
}
