273 Jaxgraph demo the sum of distances from any point on elllipse to the two focal points is constant

272 A right trangle for definition of trigonometric functions

Conic section intersection why parabola

Screenshot 2022-08-19 at 17-39-51 圆锥曲线的焦点准线性质_平面

Screenshot 2022-08-19 at 17-39-51 圆锥曲线的焦点准线性质_平面

268 A horizontal parabola obtained after rotating of a vertical one in 90 degree clockwise

Screenshot 2022-08-20 at 20-51-59 Rotate the parabola $y x^2$ clockwise $45^_circ$

266 jsxgraph demo equidistant property of a parabola

265 A jsxgraph image to visualize how focus point and directrix line impact the shape of a parabola

Dandelin Spheres Theory - Math Images

Parts of the hyperbola

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