E is for Ellipse

This example demonstrates the geometric definition and construction of an ellipse. It involves core mathematical concepts such as the definition of an ellipse, coordinate geometry, and trigonometric functions. The construction uses GeoGebra commands like Ellipse and Segment, along with objects like text1, text2, text4, A, B, C, c, f, g. It is suitable for high school students learning about the properties and parametric equations of ellipses.