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2. Perimeter of an ellipse - Wikipedia

   en.wikipedia.org/wiki/Perimeter_of_an_ellipse

   In more recent years, computer programs have been used to find and calculate more precise approximations of the perimeter of an ellipse. In an online video about the perimeter of an ellipse, recreational mathematician and YouTuber Matt Parker, using a computer program, calculated numerous approximations for the perimeter of an ellipse. [4]

3. Ellipse - Wikipedia

   en.wikipedia.org/wiki/Ellipse

   An ellipse (red) obtained as the intersection of a cone with an inclined plane. Ellipse: notations Ellipses: examples with increasing eccentricity. In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant.

4. Perimeter - Wikipedia

   en.wikipedia.org/wiki/Perimeter

   The perimeter of a circle or an ellipse is called its circumference. Calculating the perimeter has several practical applications. A calculated perimeter is the length of fence required to surround a yard or garden. The perimeter of a wheel/circle (its circumference) describes how far it will roll in one revolution. Similarly, the amount of ...

5. Greek letters used in mathematics, science, and engineering

   en.wikipedia.org/wiki/Greek_letters_used_in...

   the Christoffel symbols that describe components of a metric connection; the stack alphabet in the formal definition of a pushdown automaton, or the tape-alphabet in the formal definition of a Turing machine; the Feferman–Schütte ordinal Γ 0; represents: the specific weight of substances; the lower incomplete gamma function

6. Eccentricity (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Eccentricity_(mathematics)

   For example, on a triaxial ellipsoid, the meridional eccentricity is that of the ellipse formed by a section containing both the longest and the shortest axes (one of which will be the polar axis), and the equatorial eccentricity is the eccentricity of the ellipse formed by a section through the centre, perpendicular to the polar axis (i.e. in ...

7. Region by Region, This is What's On American's Christmas Tables

   www.aol.com/region-region-whats-americans...

   South. Ham – especially country ham – is a more common Christmas main dish in the South than elsewhere in the country, along with sides including mac & cheese and cornbread.Lechon, or spit ...