Section 3.4 Taxicab Ellipses
¶What are ellipses? The set of points at constant distance sum from two foci. Again, since we have changed the notion of distance, taxicab ellipses may not look much like Euclidean ellipses. A special case of a taxicab ellipse is shown in Figure 3.4.1.
Try moving the slider to explore different values of the distance sum. You can also move the foci.