The shape of an ellipse

• Autores: Gregory D. Foley
• Localización: Mathematics teacher, ISSN-e 2330-0582, ISSN 0025-5769, Vol. 105, Nº 4, 2011, págs. 274-279
• Idioma: inglés
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• Resumen

  • Ellipses vary in shape from circular to nearly parabolic. An ellipse's eccentricity indicates the location of its foci, but its aspect ratio is a direct measure of its shape.

    Online extra: http://nctm.org/004