First of all, it's clear from the Pythagoras' theorem that a is the square root of ^2 + ^2.

首先,根据毕达哥拉斯定理,勾股定理在西方被称为"毕达哥拉斯定理"

耶鲁公开课 - 基础物理课程节选

The power of linearity is F=k1+k2 if I come across f of x, y, z equals k1 plus k2, if it is a linear equation, I don't have to go and solve it all over again.

线性的威力是,一个方程，如果它是个线性方程，那么我就不用再去解他了。

麻省理工公开课 - 固态化学导论课程节选

It's going to be the same temperature V+dV as before but the volume is V plus dV now.

将升温到跟路径1的结果一样,但是现在的体积是。

麻省理工公开课 - 热力学与动力学课程节选

So if we have total +2 and complete shielding -1 where that can actually negate a full positive charge, because remember our nucleus is plus 2, +1 one of the electrons is minus 1, so if it totally blocks it, all we would have left from the nucleus is an effective charge of plus 1.

抵消一个完全的正电荷,因为记住我们的原子核是,其中一个电子是,所以如果它完全挡住了它，我们从原子核中留下的，全部有效电荷就是，所以，在我们的第一个例子中,我们的第一种极端情况。

麻省理工公开课 - 化学原理课程节选

I can't give it what it wants," know that when you're writing code and the problems that will remind of this, if you absolutely have to kill your program, you don't have to close the window, CTRL+C reboot crazy stuff like that, generally you can hit CTRL+C and it will just abort the program right where it is, in case you ever get trapped in some awkward situation.

我不能给它所要的“,当你在写代码时，程序将,提醒这个问题，如果你不得不,关闭这个程序，你不需要关闭这个窗口，重启像那样的疯狂举动，通常你可以敲,它将会在这个地方终止那个程序，假使你陷入了尴尬的处境。

哈佛公开课 - 计算机科学课程节选

If I reduce that it would be 3 plus t of b minus 3, so in general 3*k+t this is 3 k plus t of b minus k. OK.

把b减去一个,在外面加个3就可以了,因此也就是。

麻省理工公开课 - 计算机科学及编程导论课程节选

This point here then is the present value of your income; it's Y today + / .

直线与x轴的交点表示收入的现值,它等于

耶鲁公开课 - 金融市场课程节选

Now, we are done because now we can ask how high does it go, and you go back to your y of 1 is 15+10-5, which is what?

现在问题解决了,因为我们可以算出,最高点的高度,你回到这个式子,求出y=15+10-5,是多少

耶鲁公开课 - 基础物理课程节选

Cv+R=Cp Cv is equal, oh Cv plus R is equal to Cp it's a relationship that we had up here that we wanted to prove.

我们就得到了,我们一开始,想要证明的。

麻省理工公开课 - 热力学与动力学课程节选

One minus one-half plus one-third, it is all there.

-1/2+1/3，这就是它。

麻省理工公开课 - 固态化学导论课程节选

There I have it Cp is equal to Cv plus R, right?

所以Cp=Cv+R，对吗？

麻省理工公开课 - 热力学与动力学课程节选

So we are really looking at this reaction here H+ for ionization. It is H gas neutral goes to H plus in the gas phase plus the electron. And, furthermore, we can have multiple ionization energies.

所以我们真正看到的是,电离，它是在气相中H变为,和电子的过程，还有，我们能电离能加倍。

麻省理工公开课 - 固态化学导论课程节选

This is A + A. We're going to call it 2A.

这就是 A + A,我们也把它称为 2A

耶鲁公开课 - 基础物理课程节选