We have the cross-product of the position vector to this point times the force.

我们用这个点的，位置向量，乘以这个力。

youdao

Hopefully most of you know that the electric field is a vector field that basically tells you what kind of force will be exerted on a charged particle that you put in it.

希望大多数人都知道电场是向量场，电场描述了，对场中的带电小颗粒的力的作用。

youdao

You know.. it’s not the length of the vector that counts… it’s how you apply the force

你知道……不是向量的长度决定……是你用多大的力决定。

youdao

In other words, the x, y location of the touch, the force or depth of the touch, and the vector direction of the touch (2 angles).

FORBES: Apple's Ridiculous Patent