Well, that then says after another 12 steps, 12+12+t we're down to a problem with size t of b over 4.

更进一步，也就是。

麻省理工公开课 - 计算机科学及编程导论课程节选

I mean if you chose Alpha, you're swinging from A to B-; and from Beta, swinging from B+ to C.

要是你选α,你的分数会在A到B-,选β,分数范围会在B+到C

耶鲁公开课 - 博弈论课程节选

If you want to call something as A + B, it means that I did A and then I did B.

如果你想某个量称为 A + B,它表示我先沿着 A 走,然后是 B

耶鲁公开课 - 基础物理课程节选

Because the B+ or A- people, B- you know it, they'll hire B's and B minuses.

原本想要B+或者A-的人，实际能力评分只有B或者。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

One thing I can guarantee from past experience in this class, is that the median grade will be a B+.

不过从教学经验看,中间成绩应该是B+

耶鲁公开课 - 博弈论课程节选

You can verify, in this simple example, that A + B is the same as B + A.

在这个例子中还可以验证,A + B = B + A

耶鲁公开课 - 基础物理课程节选

So, suppose I tell you to add two vectors, A and B equal to C, and I say, "What's the result of adding A and B?"

假设我告诉你们将两个矢量相加,A + B = C,我问,"A 加 B 结果是什么"

耶鲁公开课 - 基础物理课程节选

B + A would be--First draw B and from there you draw A.

+ A 就是先画矢量 B,然后再画矢量 A

耶鲁公开课 - 基础物理课程节选

If we both put Beta, then we both get a B+; in particular, my pair gets a B+.

如果我们都选β 我们都会得到B+,此情况下,我对手得B+

耶鲁公开课 - 博弈论课程节选

There's a very natural quantity that you can call A + B.

有一个很自然的量可以记做 A + B

耶鲁公开课 - 基础物理课程节选

I personally don't like swings that much and it's the B-/B+ range, so I'd much rather prefer that to a swing from A to C, and that's my reason.

我不喜欢成绩波动很大的,比如B-/B+这个范围,所以我还是喜欢像A到C这样小点的,这就是我的原因

耶鲁公开课 - 博弈论课程节选

And we will call that A + B.

我们就称它为 A + B

耶鲁公开课 - 基础物理课程节选

Then, to find the meaning of b, we take one derivative of this, dx/dt, that's velocity as a function of time, and if you took the derivative of this guy, you will find as at+b. That's the velocity of the object.

接下来,为了弄清b的含义,我们取它的一阶导数,dx/dt,得到速度作为时间的函数,如果你对它求导的话,你会得到at+b,这就是物体的速度

耶鲁公开课 - 基础物理课程节选

Roughly speaking, a sixth of the class are going to end up with A's, a sixth are going to end up with A-, a sixth are going to end up with B+, a sixth are going to end up with B, a sixth are going to end up with B-, and the remaining sixth, if I added that up right, are going to end up with what I guess we're now calling the presidential grade, is that right?

总体来说,六分之一的人会得到A,六分之一的人会得到A-,六分之一的人会得到B+,六分之一的人会得到B,六分之一的人会得到B-,剩下的六分之一,如果我没算错,这些人将会得到,传说中的"超优"成绩

耶鲁公开课 - 博弈论课程节选