) when adding interfaces. With these interfaces, you can solve various types of PDEs using different formulations. You can also solve ODEs and other global equations as well as create events, create curvilinear coordinates, and use extra dimensions.) when adding interfaces. With these interfaces, you can solve various types of PDEs using different formulations. You can also solve ODEs and other global equations as well as create events, create curvilinear coordinates, and use extra dimensions.