# Class: focusPoint

## http://www.astro.umd.edu/~eshaya/astro-ont/owl/geometry.owl#focusPoint

## Annotations

- definition: "ParabolaFocus: Parabola is set of points equidistant from focus and directric Ellipse: Ellipse is set of points equidistant from two foci Hyperbola: Hyperbola is set of points whose difference in distance from two foci is a constant." (string)