Saving a Custom Equation
The Save Custom Equation button next to the Curve Types dropdown menu allows you to save your custom equations. They are saved to an XML file in the following location:
%APPDATA%\Roaming\SpaceClaim\SketchEquationCustoms.xml
Saved equations are added to the Curve Types dropdown menu and can be used in other documents and across multiple sessions. If you do not see a newly saved equation in the list. open/create a new document or close and re-open the current document.