Conic 指令
出自GeoGebra Manual
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- Conic[ <Point>, <Point>, <Point>, <Point>, <Point> ]
- Conic[Point A, Point B, Point C, Point D, Point E]
- Returns a conic section through the five given points A, B, C, D, and E.
- 備註: If four of the points lie on one line the conic section is not defined.
- Conic[ <Number a>, <Number b>, <Number c>, <Number d>, <Number e>, <Number f> ]
- Returns a conic section a x² + b y² + c + d x y + e x + f y = 0.
備註: See also Conic through Five Points tool.