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{{ printedBook.courseTrack.name }} {{ printedBook.name }} Draw Ellipse

Ellipses have two axes of symmetry

- The
*major axis*passes through the foci of the ellipse. - The
*minor axis*crosses the center of the ellipse and is perpendicular to the major axis.

The end points of the major axis are called *vertices* and the end points of the minor axis are called *co-vertices*.

Horizontal and vertical ellipses are given by the following two general equations.

$Horizontal Ellipse a_{2}x_{2} +b_{2}y_{2} =1−−−−−−−−−−−−Vertical Ellipse b_{2}x_{2} +a_{2}y_{2} =1 $

In these equations, $a$ is the half the length of the major axis and $b$ is half the length of the minor axis.