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Legend
| Legend | Object type |
| O | Any object |
| I | Integer number |
| R | Real number |
| Z | Complex number |
| B | Binary number |
| U | Unit |
| ∡ | Angle |
| A | Algebraic expression |
| S | String |
| N | Variable name / identifier |
| L | List |
| V | Vector |
| M | Matrix |
| P | Program |
| Lib | Library |
| G | Graphics |
| F | Font |