调用该函数来计算面积。
则分别以点为三角形顶点计算面积并求和即可。
Point of the triangle is the vertex of each area and the sum can be calculated.
默认：计算面积，范围，以适应网页：最小规模和最大规模的的物业计算。
Default: calculated to fit the webpage in the area available, Range: calculated with minimum-scale and maximum-scale properties.
这个公式用于计算圆的面积。
哈克认为，这样的课程可以弥补成年人在数字方面的盲点，这些人已经完成了像代数这样的高级数学，但却无法按面积计算出一块地毯的价格。
Such courses, Hacker argues, are a remedy for the numerical illiteracy of adults who have completed high-level math like algebra but are unable to calculate the price of a carpet by area.
哈克认为，这样的课程可以弥补成年人在数字方面的盲点，这些人虽然已经学习了像代数这样的高等数学，但却无法按面积计算出一块地毯的价格。
Such courses, Hacker argues, are a remedy for the numerical illiteracy of adults who have completed high-level math like algebra but are unable to calculate the price of, say, a carpet by area.
直到现在，研究者们可以用来计算的最小的面积也有20平方公里。
Until now, the smallest such area for which researchers could perform calculations was 20 square kilometers.
通过计算手指接触到屏幕的面积和相对的压力，这个系统能感应道手指的位置。
The system senses the positions of the fingers and, by calculating the surface area of a finger touching the screen, its relative pressure.
虽然林地的面积可以从卫星照片计算出来，但是那只给一种大部分长在那儿植物的模糊概念。
Although a woodland's area can be worked out from satellite photographs, that gives only a hazy idea of the mass of the plants growing there.
辐射剂量，用西弗茨表示，按辐射的类型和身体被辐射的面积进行计算。
Radiation doses, measured in sieverts, are calculated by taking into account the type of radiation and the area of the body that has been irradiated.
与台式电脑相比，它们具有较少的屏幕实际使用面积、较少资金、较少计算能力且有电池容量限制。
Compared to desktop computers, they have less screen real estate, less memory, less compute power, and battery capacity limits.
计算矩形面积；
我们要来定义一个带有带有高和宽的矩形，并且要提供一个计算其面积的area方法。
We want to write a class Rectangle, which has width and height as its data and a method area that computes the area.
在一个方法里它计算了面积，在另外一个方法了它返回一个表示矩形的GUI。
It is calculating the area in one method, and it is returning a GUI representation of the rectangle in another method. This leads to some interesting problems.
我创建了一个area代码块(计算矩形的面积)，将volume的第一个维度(h用于表示高度)确定为1。
I then create an area code block (which computes a rectangle's area) by fixing volume's first dimension (h, for height) as 1.
本文列出的十大拥挤都市是通过根据土地面积和人口统计数字(来自美国人口普查局)计算后排序的结果。
Here, the 10 most crowded cities in the United States, based on land area measurements and population statistics from the United States Census Bureau.
Wilson计算出了单位面积上的人类数量已经百倍于任何其他在地球上行走的大的动物物种。
Wilson calculates that human biomass is already a hundred times larger than that of any other large animal species that has ever walked the Earth.
世界第十三大湖泊的故乡(以表面积计算)，以及戈壁沙漠里的针叶林。
Home to the 13th-largest lake in the world (in surface area) as well as taiga forest and the Gobi desert.
现在需要计算一个以a，b为半轴的椭圆的面积,其实椭圆就是一个被压扁的圆。
Let's say that we want to find the area of an ellipse with semi-axes a and b. OK, so that means an ellipse is just like a squished circle.
对于曲面积分，也已经知道如何计算。
在我花了这么多时间来告诉你们，如何计算曲面积分之后，我打算告诉你们，如何避免计算它们。
After spending a lot of time telling you how to compute surface integrals, now I am going to try to tell you how to avoid computing them.
试想下，你的银行账户里仅剩下有不到12%的存款，那是怎样的心情？科学家发现这种相似的情况同时出现在计算世界红树林面积的时候。
Imagine realizing you have 12 percent less money in your bank account than you thought. Scientists realized something similar while mapping the mangrove forests of the world.
计算这个曲面积分的方法，和其他任何曲面积分的一样。
And, the way in which you would compute the surface integral is just as with any surface integral.
海岸线一旦因为海平面上升而缩小，以海岸线为基准计算的经济区面积也会缩小，很多学者都持这样的观点。
Where coasts recede because of rising seas, so do the baselines from which such zones are calculated, many scholars say.
我们想要的，并不是计算出来的结果，结果不只是抛物面底下的面积，也包含了，负值的部分。
Let's say that what I wanted to know was not actually what I computed, namely, the volume below the paraboloid, but also the negative of some part that's now in the corner towards me.
科学家发现这种相似的情况同时出现在计算世界红树林面积的时候。
Scientists realized something similar while mapping the mangrove forests of the world.
然而我们大多数的用户会向我们寻求更强的计算能力而不是差一些的，所以我可不会占用现有GPU的部分面积来让它成为一颗CPU。
However, most of our customers ask us for more computing power-not for less-so I wouldn't want to take some of my silicon area and devote it to a CPU.
然后我们就可以这样调用计算它的面积了。
然后我们就可以这样调用计算它的面积了。
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