# System variable with U letter [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [U](Help%20System/GSTARCAD/2021/System%20Variables/U/(U).md) - [UCSAXISANG](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSAXISANG%20System%20Variable--081179adfc60.md "UCSAXISANG") - [UCSBASE](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSBASE%20System%20Variable--3852e51eedc6.md "UCSBASE") - [UCSFOLLOW](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSFOLLOW%20System%20Variable--f52a3cd09349.md "UCSFOLLOW") - [UCSICON](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSICON%20System%20Variable--f209cfb89d7b.md "UCSICON") - [UCSNAME](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSNAME%20System%20Variable--c9528bae792d.md "UCSNAME") - [UCSORG](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSORG%20System%20Variable--be7dc9489253.md "UCSORG") - [UCSVIEW](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSVIEW%20System%20Variable--2dead8f6b72d.md "UCSVIEW") - [UCSVP](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSVP%20System%20Variable--8b4b5d2ab2ce.md "UCSVP") - [UCSXDIR](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSXDIR%20System%20Variable--bf19c8f95718.md "UCSXDIR") - [UCSYDIR](Help%20System/GSTARCAD/2021/System%20Variables/U/UCSYDIR%20System%20Variable--b50ee73a4378.md "UCSYDIR") - [UNDOCTL](Help%20System/GSTARCAD/2021/System%20Variables/U/UNDOCTL%20System%20Variable--cbb5ec4d9d9f.md "UNDOCTL") - [UNDOMARKS](Help%20System/GSTARCAD/2021/System%20Variables/U/UNDOMARKS%20System%20Variable--bcb45ad4385f.md "UNDOMARKS") - [UNITMODE](Help%20System/GSTARCAD/2021/System%20Variables/U/UNITMODE%20System%20Variable--91422b181d0b.md "UNITMODE") ---