| Package | Description | 
|---|---|
| org.apache.poi.ss.formula | This package contains common internal POI code for manipulating formulas. | 
| org.apache.poi.ss.formula.eval | 
| Modifier and Type | Interface and Description | 
|---|---|
| interface  | ThreeDEvalOptional Extension to the likes of  AreaEvalandAreaEvalBase,
  which allows for looking up 3D (sheet+row+column) evaluations | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | CacheAreaEval | 
| class  | LazyRefEvalProvides Lazy Evaluation to a 3D Reference | 
| Modifier and Type | Interface and Description | 
|---|---|
| interface  | AreaEvalEvaluation of 2D (Row+Column) and 3D (Sheet+Row+Column) areas | 
| interface  | RefEvalRefEval is the super interface for Ref2D and Ref3DEval. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AreaEvalBase | 
| class  | RefEvalBaseCommon base class for implementors of  RefEval | 
| Constructor and Description | 
|---|
| AreaEvalBase(AreaI ptg,
            SheetRange sheets) | 
| AreaEvalBase(SheetRange sheets,
            int firstRow,
            int firstColumn,
            int lastRow,
            int lastColumn) | 
| RefEvalBase(SheetRange sheetRange,
           int rowIndex,
           int columnIndex) | 
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