举一个点积的，现实例子。

Let us take a down-to-earth example of a dot product.

youdao

另一个定义,点积的方法。

There is another way that you can find the dot product.

youdao

点积是三个标量的乘积，所以是个标量。

The dot product, being the product of three scalars, is a scalar.

youdao

这就是点积。

That is the dot product.

youdao

可以直接用点积来,找到这个角的大小，那么，怎么找呢？

We can just find the angle using dot product So, how would we do that?

youdao

“好主意，”我回敬他说，“最好留着它，能为你有下位乘客积点德。”

“Great idea,” I replied. “Better save it for your next customer.

youdao

“好主意，”我回敬他说，“最好留着它，能为你有下位乘客积点德。”

"Great idea," I replied. "Better save it for your next customer."

youdao

若有人雇用你一小时，你便获得一个服务积点。

When someone employs you for an hour, you get a service credit.

youdao

不幸的是，其他两科的成绩把我的平均积点给拉了下来。

Unfortunately, those two grades brought down my G. P. A. (Grade-point Average)

youdao

所有的会员在一分钟内最多只能累积1个积点。

All members can accumulate only ONE Ad Point per minute.

youdao

所有的会员在一分钟内最多只能累积1个积点。

All members can accumulate only ONE Ad Point per minute.

youdao