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In ], eccentricity is a measure of how much an ellipse deviates from a circle. | |||
To calculate the eccentricity of any ellipse, measure the semi-major axis | To calculate the eccentricity of any ellipse, measure the semi-major axis | ||
and call it " a " . Measure the semi-minor axis and call that measurement | and call it " a " . Measure the semi-minor axis and call that measurement | ||
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The eccentricity is given the symbol, " e " . | The eccentricity is given the symbol, " e " . | ||
The eccentricity of any ellipse is greater than zero, but smaller | The eccentricity of any ellipse is greater than zero, but smaller than 1.0 | ||
than 1.0 | |||
The eccentricity of a circle is zero. | The eccentricity of a circle is zero. | ||
In ], eccentricity refers to the deviation of an object's orbital motion from a circular orbit, according to the mathematical formula given above. | |||
In popular useage, eccentricity refers to unusual or odd behavior on the part of an indididual. |
Revision as of 16:20, 19 February 2002
In mathematics, eccentricity is a measure of how much an ellipse deviates from a circle. To calculate the eccentricity of any ellipse, measure the semi-major axis and call it " a " . Measure the semi-minor axis and call that measurement " b ". Now calculate:
SquareRoot( (a^2 - b^2)/a^2 )
The eccentricity is given the symbol, " e " .
The eccentricity of any ellipse is greater than zero, but smaller than 1.0
The eccentricity of a circle is zero.
In astronomy, eccentricity refers to the deviation of an object's orbital motion from a circular orbit, according to the mathematical formula given above.
In popular useage, eccentricity refers to unusual or odd behavior on the part of an indididual.