Eccentricity from the Focal and Major Axes
If the distance between the foci is $$2c$$ and the major axis is $$2a$$:
$$e=\frac{2c}{2a}$$
Usage
- Used when the focal separation and major-axis length are known.
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Eccentricity from the Focal and Major Axes
Eccentricity from the Focal and Major Axes
If the distance between the foci is $$2c$$ and the major axis is $$2a$$:
$$e=\frac{2c}{2a}$$
Usage
- Used when the focal separation and major-axis length are known.
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