A circumscribed QA-DT-Conic is a conic through the vertices of the QA-Diagonal Triangle QA-Tr1.
This subject was being developed by the specific observation of Angel Montesdeoca in QA-Ci1 and QA-P38. It was generalized by observations of Eckart Schmidt, Randy Hutson and the author of EQF (July, 2012).
u1 u2 (v2 w1 - v1 w2) (p2 r2 v12 v22 (u2 w1 - u1 w2)2 + p2 q2 w12 w22 (u2 v1 - u1 v2)2 - q2 r2 u12 u22 (v2 w1 - v1 w2)2)
- When QA-DT-Conic = QA-Co1, then the QA-DT-Conic-Perspector is QA-P1.
- When QA-DT-Conic = QA-Co4, then the QA-DT-Conic-Perspector is a point on the line QA-P22.QA-P29. No further properties were found.
When QA-DT-Conic = QA-Co5, then the QA-DT-Conic-Perspector is a point on the line QA-P16.QA-P17. It is also the intersection of tangents to QA-Co5 at QA-P1 and QA-P20 and it lies on the line through QA-P22 and the center of QA-Co5. (Randy Hutson, July, 2012).1st DT-coordinate: p2 (p2 - q2 - r2) (p4 q2 - 2 p2 q4 + q6 + p4 r2 + 4 p2 q2 r2 - q4 r2 - 2 p2 r4 - q2 r4 + r6)