Find foci and eccentricity of ellipse given either 5 points or its general equation
73218
How to find centre,vertics,foci,focal radii,letus rectum... when exists of a general quadratic equation in x and y
151196
Find tangent point on circle furthest east or west
56527
Ellipse formula from points
135361
Odds of ellipse from five random points
106069
Fast way to find period-n points of a tent map?
28747
angular velocity around ellipse
49742
Calculating the position of points in a circle
57274
Asphericity of pseudo circle
142755
How to find the center of an ellipse?
49845
For an ellipse with minor radius $b$, show that the product of distances from the foci to any tangent line is $b^2$
7306
How is the equation of motion on an ellipse derived?
60530
Locating tick marks at integral multiples of pi/2
48477
Finding an equation of circle which passes through three points
117618
How to geometrically prove the focal property of ellipse?
64384
Finding center and radius of circumcircle
10772
Equilateral triangle inscribed in a ellipse
37448
Two Circles and Tangents from Their Centers Problem