Bæta við eigin framburði þinn af "楕円"
Merkingar og skilgreiningar á "楕円"
Skilgreiningar
- 円錐と、円錐を完全に横断する平面との交差によってできる平面の閉曲線
- a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it
- 平面の断面が楕円、または円である面
- a surface whose plane sections are all ellipses or circles
Dæmi
- 焦点から長円上のあらゆる点への距離の和は一定である
- the sums of the distances from the foci to any point on an ellipse is constant
- 地球は楕円面である
- the Earth is an ellipsoid