Regarding the right ascensions and declinations of celestial objects for the purposes of amateur astronomy, some coordinates ...

Given a polygon and a curve, consider one edge on the polygon. Find a plane passing through the edge that is tangent to the curve. The endpoints of the edge and the point of tangency define a ...

BOSL2 introduces the concept of attachables. You can do the following things with attachable shapes: Control where the shape appears and how it is oriented by anchoring and specifying orientation and ...