A mathematical structure created from two points called Foci and a distance
A Circles is an ellipse with two foci at the same point
Defintion
- With Foci
- With distance
The ellipse is the selection of points where the sum of the distances from each foci adds up to the distance

Center
This is the point equidistant from both points
Major Axis
This is the axis that crosses the two points

Semimajor Axis
Half of the major axis. Denoted as

Minor Axis
The axis that is perpendicular to the major axis that crosses the center

Semiminor Axis
Half of the minor axis. Denoted as
