QL-P25: 2nd QL-Parabola Focus


QL-P25 is the Focus of the 2nd QL-Parabola QL-Co3.
For an explanation of the 2nd QL-Parabola see QL-Co3.

QL-P25-2nd-QL-Parabola-Focus-00
Coordinates: 
1st CT-coordinate:
a2 m n (l - m) (l - n) (l5 m5 - 3 l5 m4 n + l4 m5 n + 2 l5 m3 n2 - 4 l4 m4 n2 + 2 l3 m5 n2 + 2 l5 m2 n3 + 6 l4 m3 n3 - 6 l3 m4 n3 - 2 l2 m5 n3 - 3 l5 m n4 - 4 l4 m2 n4 - 6 l3 m3 n4 + 16 l2 m4 n4 - 3 l m5 n4 + l5 n5 + l4 m n5 + 2 l3 m2 n5 - 2 l2 m3 n5 - 3 l m4 n5 + m5 n5)
l m n (l - m) (l - n) (m - n) m2 n2 (4 b2 n (l - m) (3 l m - l n - m n))
l m n (l - m) (l - n) (m - n) m2 n2 (4 c2 m (l - n) (l m - 3 l n + m n)) 

1st DT-coordinate:
            l2 (m2-n2) (b2 n2 (-l2+m2) +c2 m2 (l2-n2))

Properties:
        QL-P8.QL-P17           (-1 : 3 => QL-P25=Complement of QL-P17 wrt QL-DT)