ellipse
英 [?'l?ps]
美[?'l?ps]
- n. [數(shù)] 橢圓形，[數(shù)] 橢圓
英英釋意
- 1. a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it;
- "the sums of the distances from the foci to any point on an ellipse is constant"