| Giver | Post | Date |
| pattypat | Re: In the rectangular coordinate system above, if point A (not shown) is | 12-Dec-2022 |
| GeminiHeat | Re: In the rectangular coordinate system above, if point A (not shown) is | 09-Apr-2021 |
| Carcass | Re: In the rectangular coordinate system above, if point A (not shown) is | 09-Apr-2021 |