What is the circumference of an ellipse?

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Given only the lengths of the major and minor axis.

2007-12-03 06:37:30 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

The circumference of an ellipse cannot be expressed in terms of elementary functions. That's why they have elliptic integrals.

2007-12-03 06:45:27 · answer #1 · answered by Alexander 6 · 0⤊ 0⤋

The following gives a good estimate of the perimeter (circumference) of an ellipse.

2 Ï â[2( aÂ² + bÂ² ) ]

2007-12-03 06:41:00 · answer #2 · answered by Puzzling 7 · 0⤊ 0⤋