This property represents the distance of the point from its origin.
该属性表示从原点到该点之间的距离。
The slope of secant drawn from the origin through the point is the average function.
从原点出发并连接该点所构成的割线的斜率即为曲线的平均函数。
The slope of secant drawn from the origin through the point is the average function.
从原点出发并连接该点所构成的割线的斜率即为曲线的平均函数。
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