Usually, we have two variables.
通常我们有两个变量。
Oh, a function of two variables.
这的确是一个二元函数。
Here, you have two variables of integration.
这边需要对两个变量做积分。
Both methods work with more than two variables.
超过两个变量，这两个方法都能用。
The next two variables are the replacement for it.
接下来的两个变量就是用来替代它的。
The last two variables are bound to the edit boxes.
最后两个变量绑定到编辑框。
In step B2, there are two variables: E-mail and password.
在步骤B2中，这里有两个变量：电子邮件地址和密码。
Well, let's say how to visualize a function of two variables.
如何想象一个有两个变量的函数。
Covariance is a measure of how much two variables move together.
协方差衡量的是两个变量一起变动的情况。
Of course, these two variables are typically related in practice.
当然，这两个变量在实际情况下通常是相关的。
So, there is another way to plot the functions of two variables.
还有另外的一种方法画出二元函数的图像。
That method works exactly the same way as it did in two variables.
在两个变量的情形中，这种方法同样奏效。
It is a surface integral, so we need to have two variables in there.
它是一个面积分，所以这里需要两个变量。
That was our first example of a function of two variables possibly.
这是二元函数中的第一个例子。
So, we are going to focus on the case of functions of two variables.
我们将把注意力集中在二元函数上。
OK, so now, let's say that we had, actually, a function of two variables.
可能是这样的，现在我们可以说，有一个含有两个变量的函数。
So, when we think of a graph, really, it is a function of two variables.
因此当我们在想像一个图像时，其实那只是一个二元函数的图像。
Roger evaluated the ROI on the basis of two variables namely Cost and Return.
Roger依据成本和收益这两个变量来评估roi。
This ensures a consistent view of the two variables (see Resources for a citation).
这可以确保能够得到这两个变量的一个一致视图(请参阅参考资料中的引用)。
So, we said when we have a function of two variables, we have the gradient vector.
我们说，当一个二元函数存在时，就有梯度向量。
For example, if in some step the user enters a user ID and password, there are two variables.
例如，在某些步骤中，如果用户输入了用户ID和密码，这就产生了两个变量。
And it turned out that for this mixture, we only needed two variables. Two degrees of freedom.
最终对于这种混合，我们只需要两个变量，两个自由度。
In Figure 2, the action class sets the values of two variables using getter and setter methods.
图2中，action类使用getter和setter方法设置两个变量的值。
And then, we'll see that if we have more than two variables, then it's harder to plot the function.
我们会发现如果函数有多于两个变量，那把它画出来会困难得多。
All you're doing is defining two variables at the top of the program and then slipping into HTML mode.
您所做的全部事情就是在程序开头定义两个变量，然后进入HTML模式。
Rule3 initializes these two variables by creating a new business object and assigning some values to them.
Rule3通过创建一个新业务对象并向这两个变量赋值来初始化它们。
we've seen is how to actually view a function of two variables in terms of its graph and its contour plot.
我们学过怎样认识二元函数,从它的图像和等高线的角度来看。
For example, we can assign values to two variables simultaneously with one pattern matching (see Listing 31).
例如，可以使用一个模式匹配同时为两个变量赋值(参见清单31)。
For example, we can assign values to two variables simultaneously with one pattern matching (see Listing 31).
例如，可以使用一个模式匹配同时为两个变量赋值(参见清单31)。
应用推荐