2012

FILLET does not trim circles; the fillet arc meets the circle smoothly.
Loop
Specifies a loop of edges on the face of a solid. For any edge, there are two
possible loops. After selecting a loop edge, you are prompted to Accept the
current selection, or choose the Next loop.
Undo
Reverses the previous action in the command.
Polyline
Inserts fillet arcs at each vertex of a 2D polyline where two line segments meet.
520 | Chapter 7 F Commands