Eccentricity can be defined as how much a conic section deviates from being circular. A circle has an eccentricity of 0, this means that eccentricity shows how un-circular a curve is. Higher the eccentricity, lesser the curve.
Eccentricity of different curves:
- A circle has an eccentricity of 0 (e = 0).
- Eccentricity of an ellipse is greater than 0 and lesser than 1 (0 < e < 1).
- Parabola has an eccentricity of 1 (e = 1).
- Hyperbola has an eccentricity greater than 1 (e > 1).
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