See: Description
| Class | Description | 
|---|---|
| ExpressionNode | Represents a node in the operator tree for a math expression. | 
| ExpressionParser | Parses metric, set, and condition expressions. | 
| HashMultiSet<E> | A hash set that can contain the same element multiple times. | 
| IntegerMatrix | Realizes a sparse matrix of integers. | 
| MappedCollectionsIterator<T> | Iterates over the elements contained in multiple collections, which are
 organized as values in a map. |