👉 In mathematics, a semiellipse is a type of conic section that looks like a slightly flattened ellipse. It has two foci located at the ends of its major axis and an eccentricity (a measure of how much the curve deviates from a circle). The semiellipse can be defined as follows: 1. If \(b^2 = c^2 - a^2\), then the semi-ellipse is given by: \[ \frac{x^2}{a^2}