Distance 指令

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Distance[ <Point>, <Object> ]

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Distance[Point A, Object O]

Yields the (shortest) distance between points A and the Object. Works for Points, Segments, Lines, Conics and Implicit Curves. When f is a function, Distance[A,f] returns distance between A and (x(A),f(x(A))).

備註： In GeoGebra 3.2 Distance[Point A, Segment] gave the distance to the segment extended to an infinite line. From GeoGebra 4.0 it gives the distance to the Segment itself.

Distance[Line g, Line h]

Yields the distance between the parallel lines g and h.

備註： The distance between intersecting lines is 0. Thus, this command is only interesting for parallel lines.

備註： See also Distance or Length tool .