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Eccentricity

The math word "eccentricity" is referenced in the pages listed below.

Pages referring to 'eccentricity'

If you think of an ellipse as a 'squashed' circle, the eccentricity of the ellipse gives a measure of how 'squashed' it is. It is found by a formula that uses two measures of the ellipse. The equation is shown in an animated applet.