Item:Q6441: Difference between revisions
Created a new Item: n-ellipse, generalization of the ellipse allowing more than two foci |
Created claim: defining formula (P333): \left\{(x, y) \in R^2: \sum_{i=1}^n \sqrt{(x-u_i)^2 + (y-v_i)^2} = d\right\} |
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| Property / subclass of | |||
| Property / subclass of: closed curve / rank | |||
Normal rank | |||
| Property / subclass of | |||
| Property / subclass of: convex curve / rank | |||
Normal rank | |||
| Property / subclass of | |||
| Property / subclass of: spectrahedron / rank | |||
Normal rank | |||
| Property / defining formula | |||
\left\{(x, y) \in R^2: \sum_{i=1}^n \sqrt{(x-u_i)^2 + (y-v_i)^2} = d\right\} | |||
| Property / defining formula: / rank | |||
Normal rank | |||
