Reference Terms
from Wikipedia, the free encyclopedia


In mathematics, an ellipse is a plane algebraic curve where the sum of the distances from any point on the curve to two fixed points is constant.

An ellipse can be drawn with two pins, a loop of string, and a pencil.

Note:   The above text is excerpted from the Wikipedia article "Ellipse", which has been released under the GNU Free Documentation License.
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November 26, 2015

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updated 12:56 pm ET