T-Conics
This activity belongs to the GeoGebra book GeoGebra Principia.
As we have seen before, the T-circle takes on a square shape (with diagonals parallel to the axes).
The T-ellipse generally has the shape of an octagon. If points A and B lie on the same vertical or horizontal line, it takes on a hexagonal shape. When the constant sum coincides with the T-distance from A to B, the ellipse degenerates into a rectangle with diagonal AB.
The T-parabola is generally formed by two rays (either horizontal or vertical) and two segments.
Finally, each branch of the T-hyperbola is generally formed by two rays (either horizontal or vertical) and one segment.
Author of the construction of GeoGebra: Rafael Losada.