this post was submitted on 25 Jan 2026
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Shitty Ask Lemmy
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Since you wrote b≥a, and not b>a, If b=a, then a=b, so the formula still applies, but it's not an oval, it's a circle. Technically an elipse has to have the semi-major axis (a) longer than the semi-minor axis (b).
But there is a detailed explanation of your question here:
https://en.wikipedia.org/wiki/Semi-major_and_semi-minor_axes