Geometry
Eccentricity
How squashed is the conic? 0 = circle, <1 = ellipse, 1 = parabola, >1 = hyperbola.
Eccentricity measures how 'stretched' a conic section is.
By value
- e = 0 — circle.
- 0 < e < 1 — ellipse.
- e = 1 — parabola.
- e > 1 — hyperbola.
How squashed is the conic? 0 = circle, <1 = ellipse, 1 = parabola, >1 = hyperbola.
Eccentricity measures how 'stretched' a conic section is.