# DIMALTU System Variable
[GstarCAD 2020](Help%20System/GSTARCAD/2020/Index.md) → [System Variables](Help%20System/GSTARCAD/2020/System%20Variables/(System%20Variables).md) → [D](Help%20System/GSTARCAD/2020/System%20Variables/D/(D).md)
## Function Description:
The DIMALTU system variable is used to set unit formats for alternate units of all dimension sub styles(except angular dimension).
| | |
| --- | --- |
| Type | Integer |
| Saved in | Drawing |
| Initial value | 2 |
| Range | 1 \~ 8 |
## System Variable Value:
**1:** scientific
**2:** decimal
**3:** engineering
**4:** architectural(stacked)
**5:** grade (stacked)
**6:** architectural
**7:** fractional
**8:** Microsoft Windows desktop (decimal format using control panel settings for decimal separator and number grouping symbols)
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## Other versions with matching text
[GstarCAD 2016](../../../2016/System%20Variables/D/DIMALTU%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/D/DIMALTU%20System%20Variable.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/System%20Variables/D/DIMALTU%20System%20Variable.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/D/DIMALTU%20System%20Variable.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/D/DIMALTU%20System%20Variable.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/D/DIMALTU%20System%20Variable.md)