Tangent on curve的意思|示意

Then actually there are ways you can use basically differentials and constrained partials to figure out what the tangent vector to the curve is and so on.

然后，可以用微分关系,或受约束的偏微分来表示,曲线的切向量，就是这样了。

The problem of attaining the tangent equation of a certain point on a quadratic curve is basically solved in plane analytical geometry.

平面解析几何对“求过二次曲线外的点所引曲线切线的方程”的问题，未给出一般的方法和公式。

Crosshairs appear to indicate the perpendicular and tangent lines that extend from any point on the curve.

光标仅沿着曲线移动，十字准线显示指定的垂足和切线扩展到曲线的任意一点。

It adopted not only direction information of GPS but also the tangent heading information taken from the database to get actual train position on curve segment.

针对曲线区段的定位，还提出了一种基于GP S方位角和轨道信息的同向切线定位法。