public static XmlFormulaTree CreateSubtractNode(XmlFormulaTree leftChild, XmlFormulaTree rightChild)
{
return new XmlFormulaTree
{
VariableType = "OPERATOR",
VariableValue = "MINUS",
LeftChild = leftChild,
RightChild = rightChild
};
}
public static XmlFormulaTree CreateNegativeSignNode(XmlFormulaTree child)