# Tagged Questions

259 views

### Length of chord on ellipse

Suppose I have an ellipse centered at the origin, preferably expressed in its matrix form, and I want to know the chord length of a segment that passes through the origin with the endpoints at the ...
667 views

### Determining the angle degree of an arc in ellipse?

Is it possible to determine the angle in degree of an arc in ellipse by knowing the arc length, ellipse semi-major and semi-minor axis ? If I have an arc length at the first quarter of an ellipse and ...
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### How to know the flattening factor for a ellipse?

I want to know how can I get the flattening factor for a ellipse by knowing its semi-major and semi-minor axes ? Actually I tried this formula: $f=\left(\frac{a}{b}-1\right)$ While $f$ is the ...
7k views

### How to determine the arc length of ellipse?

I want to determine the arc length of a ellipse. So what data should I know ? And what law should I use ? For example I have this ellipse on picture below: How can I determine the $d$ length of ...
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### How to get the radius of an ellipse at a specific angle by knowing its semi-major and semi-minor axes?

How to get the radius of an ellipse at a specific angle by knowing its semi-major and semi-minor axes? Please take a look at this picture :
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### How to calculate minimum distance between two arbitrary ellipses in 2D?

Arbitrary ellipses means that they can be scaled, translated and rotated in any way in 2D. Do you know some high-school method (might be slightly more advanced than that) to find the minimum distance? ...