A chord function in a syntax tree.
Represents a mathematical function in a syntax tree.
ChordNode(ExpressionNode *expression, char *text, char *sys)
static FunctionNode * Create(ExpressionNode *expression, char *text, char *sys)
virtual Number * Evaluate()=0
FunctionNode(ExpressionNode *expression, char *text, char *sys)
virtual Number * Chord()=0
Base class for all nodes related to mathematical expressions.
ExpressionNode * expression