用解析几何的公式直接计算某个点的坐标、点与点之间的距离、点到直线的距离等。
The coordinate of a certain point, the distances between points and distances from point to line are directly calculated with the analytic geometry formula.
用解析几何的公式直接计算某个点的坐标、点与点之间的距离、点到直线的距离等。
The coordinate of a certain point, the distances between points and distances from point to line are directly calculated with the analytic geometry formula.
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