void PopOperatorAndPushResult(Stack <TreeNode> termStack, Stack <BinaryOperatorOperation> operatorStack)
{
BinaryOperation operation = operatorStack.Pop();
// note: operators are popped in the reverse order because stack.
TreeNode rightChild = termStack.Pop();
TreeNode leftChild = termStack.Pop();
TreeNode result = new BinaryOperationTreeNode(operation, leftChild, rightChild);
termStack.Push(result);
}
private TreeNode MakeBinaryDifferential(BinaryOperationTreeNode bTreeNode, int index)
{
TreeNode leftChildDx = MakeDifferential(bTreeNode.LeftChild, index);
TreeNode rightChildDx = MakeDifferential(bTreeNode.RightChild, index);
TreeNode differential = BinaryDifferential[bTreeNode.Operation].Clone();
ReplaceDifferentialArguments(differential, bTreeNode.LeftChild, leftChildDx, bTreeNode.RightChild, rightChildDx);
return(differential);
}
