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This is the name to which I'm going to refer when I want to use this function. All right?
这是我以后使用这个函数式,会采用的名字？
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In contrast, if we're taking the wave function and describing it in terms of n, l, m sub l, and now also, the spin, what are we describing here?
相反，如果我们考虑一个波函数,然后用ｎ，ｌ，ｍ小标ｌ,还有自旋，我们描述的是什么？
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So in return to, we have a slight variance here, -- where I'm defining apparently -- declaring a function called cube.
作为应答，这里我们有一点变化，这里我显然定义了-,声明了一个叫做cube的函数。
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And what's this little loop say to do? This little loop says I'm going to write a function or procedures that takes in two messages.
这个小循环是做什么的,这个小的循环是,我要写一个函数或者过程来接受两条消息。
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The usual function of my equivalent of Power Point isn't quite the same today because I'm taking an interest in some of these diagrammatic matters as well and, as I say, I will be pointing to them.
以前我的粉笔相当于幻灯片的功能,但是今天不太一样,今天我们会用到一些图表，我会指着它们讲解。
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Anybody have an idea? What's the one function of state? I'm the system, the rest are the surrounding. What's the one function of state that's constant when I'm doing all my chemical reactions to move my arms around?
态函数又是什么呢？,我是一个系统，其余的是周围的环境,那么当我在做所有的化学反应,去四处移动我的手臂的时候,什么量是常数？
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s We are back over to E as a function of n, l, m and s, only we got there through this other torturous route.
我们回到将E作为函数n，l和，只要我们解决了这个烦人的路径。
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Mathematically complete problem is that you can find the function x of t by saying that the second derivative of the function is equal to -k over m times the function.
这个数学问题就是,你可以求出函数 x,只要令函数的二阶导数,等于 -k 除以 m 再乘以函数
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What I did was I differentiated this fairly simple function with respect to q1 and since I want to find a maximum, what I'm going to do is I'm going to set this thing equal to 0.
只不过是对q1求导了,既然我们要求出最大值,只需要令导数等于0就可以了
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The body of that function looks exactly like the computation up above, except I'm simply using those in place of the specific message I had before.
方法体内部看起来,很像上面的计算过程,除了我用这些来替代了,原来的那些特殊信息。
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Now in this case, it's clear that I'm not only saying this function takes an input, I also have to give that input a name.
在这种情况，很清楚的,我不只是说明这个函数有一个输入，我还要给那个输入一个名字。
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I'm actually just going to do something simple first, print the arguments to this function.
我实际上将要先做点简单的东西，打印函数的参数。
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I'm saying "here comes my main function; here comes the guts of my program."
我指明“这里是我的主函数;,这里是我的程序内容，“
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I'm going to write a function to compute integer power exponents.
我要去写一个,计算一个整数幂指数的方法。
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So let's just think exactly what this means, and that means that if we take away function and we define it in terms of n, l and m sub l, what we're defining here is the complete description of an orbital.
让我们来考虑一下这是什么意思，这是说如果我们不考虑波函数,而是用ｎ，ｌ，ｍ下标ｌ来定义它，我们定义的,是一个轨道的完整描述。
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So in hydrogen atom a, I'll depict that here where the nucleus is this dot, and then the circle is what I'm depicting as the wave function.
在氢原子A里，我在这里把原子核画成一个点，这圆就是波函数。
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This is me writing one hour of that episode of Pirandello and telling the other authors, here's what I'm assuming as you use it. So it's up to me to do it right, but if I do it, I'm going to specify, what does this function do?
作为一个程序员,我得为用户提供一些信息,这正是我写写的皮兰德娄戏剧的一小时片段,并且要告诉其它的作家，这是我希望你使用的地方，所以由我决定怎样去做好它？
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So, suppose I'm in a function, I need the space.
假使我在一个函数中，我需要一个空格。
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increment Well, here, I'm calling my own function, increment.
这里，我调用我自己的函数。
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So putting back that prototype allows me to compile this, because I'm saying proactively to the compiler hey, you're going to see a function called increment.
把那个原型放回原处使我能够编译它，因为我提前向编译器打了招呼，将看到一个叫做increment的函数。
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malloc I'm going to now use this new, fancy function called malloc and I'm going to say x gets the return value of malloc of the size of an int.
我现在使用这个新的，别致的函数,然后我指明x，=，malloc的int型数据的大小,的返回值。
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So when we talk about a wave function squared, n l m he wave function, any one that we specify between n, l and m, at any position that we specify based on r, theta, and phi.
一个波函数,的平方时，对特定,特定位置r，theta，phi波函数，取平方,如果我们取平方。
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So we can draw that for 1 s a, we can also draw it for 1 s b, and what I'm saying for the molecular wave function is that we have the interference between the two, and we have a constructive interference, so we end up adding these two wave functions together.
所以我们可以对1sa画出它来，我们也可以对1sb画出它来，对于分子波函数我要说的是,它们两者之间会干涉，这里我们有相长干涉，所以我们得到的是波两个波函数加起来。
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The idea of a function is, that I'm going to capture a common pattern of computation.
函数的目的,就是寻找计算的共同模式。
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What happened? I'm down here and try, I'm trying do get grades, which is a call to that function, which is not bound in my computer.
尝试着读取成绩，这被称为函数,是不被我的计算机局限的。
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to do sqrt, or square root-- no, I'm going to square root use sqrt, that's the name I'm using here-- square root a hundred different places in some piece of code. Without function, I'd have to copy that piece of code everywhere.
让我做一下准备,想象一下我要调用sqrt或者-,不，我会调用sqrt函数,这是我在这里用的名字，我得把这段代码到处复制。
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X So here I'm declaring another variable called X, and this is totally legitimate because I already know that if I'm implementing a function like swap or increment, I can absolutely take input.
这里我声明另一个变量，这个完全是合法的因为我已经知道,如果我执行一个像swap，或，increment的函数，我完全可以携带输入。
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I'm not wasting time typing out arguments and implementing more complicated function.
我不会在浪费时间在打印输出参数上,我执行了更复杂的程序。
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I'm creating a function.
我正在创建一个函数。
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Actually for that, I can just use, if I'm lucky, function F5, which didn't work, so let me try it again,here we go.
实际上这一次，我是想用用，如果我够幸运的话，用下F5，噢，怎么不灵，让我再试试，好了。
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