Apr 13, 2013 · First, you could rotate the frame and then use that crazy pathfinder trick I wrote (see link above) to unrotate the text. That’s ugly. The faster, easier way to do it is to choose the Direct Selection tool from the Tools panel (the white arrow tool), then Option/Alt-click on the frame.
Moment of Inertia, General Form. Since the moment of inertia of an ordinary object involves a continuous distribution of mass at a continually varying distance from any rotation axis, the calculation of moments of inertia generally involves calculus, the discipline of mathematics which can handle such continuous variables.