// multi-utility computation suite · offline · instant · precise
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math.geometry-ellipse Calculator
Calculates area, approximate circumference (Ramanujan's formula), and eccentricity of an ellipse from semi-major and semi-minor axes. A circle is the special case where semi-major = semi-minor — eccentricity 0 is a circle, approaching 1 is a line.
Inputs
A
Reference formula or conversion factor shown for context.
B
Reference formula or conversion factor shown for context.