soikeita
Soikeita is the plural form of the Finnish word soikea, meaning oval or elliptical. In mathematics, soikeita commonly refers to ellipses, which are closed planar curves determined by a fixed geometric relationship rather than a single size or shape. A central property is that the sum of the distances from any point on an ellipse to two fixed points, called the foci, is constant. This constant equals 2a, where a is the semi-major axis.
In standard position, an ellipse centered at the origin with its major axis along the x-axis is
Ellipses may also be rotated or translated. A rotated ellipse can be written in a general second-degree
Applications and occurrences of soikeita include astronomy, where planetary orbits are approximately elliptical, as well as