Labels:text | screenshot | display | number | font | rectangle | parallel OCR: 1. Stack after doing four commands: InsertRow Edit Edit Sort Undo Top- Redo Top --- 2. Stack after undoing two commands: InsertRow Edit Edit Sort Undo Top Redo Top 3. Stack after redoing one command: InsertRow Edit Edit Sort Undo Top Redo Top- 4. Stack after doing another command: InsertRow Edit Edit Copy Row Undo Top- Redo Top Figure 4: Operation of the undo/redo stack
