是的，几何上两个向量相加,你就把一个向量的尾巴,放到另一个向量的头上去,那就是“头尾”加法,还有问题么？

Exactly. To add vectors geometrically you just put the head of the first vector and the tail of the second vector in the same place And then, it's head to tail addition Any other questions?

youdao

向量和几何。

Vectors and geometry.

youdao

不能优化具有绘图类型格式矢量图形向量图形：使用几何公式的图形对象的表示形式，如线条、弧形和正方形。

You cannot optimize pictures that have a drawing type of format vector graphics vector graphics: The representation of graphic objects such as lines, arcs, and squares by using geometrical formulas.

youdao