| Giver | Post | Date |
| ahead | Re: In the xy-plane, the point with coordinates is the center of | 22-Dec-2024 |
| Nikhil4GRE | Re: In the xy-plane, the point with coordinates is the center of | 12-May-2020 |
| shift5105 | Re: In the xy-plane, the point with coordinates is the center of | 10-May-2020 |
| prasadbankar2345 | Re: In the xy-plane, the point with coordinates is the center of | 09-Dec-2016 |