• 那么怎么计算这个二重积分呢?

    Now, how do we compute that double integral?

    youdao

  • 如何二重积分表示面积呢?

    How do you express the area as a double integral?

    youdao

  • 想想二重积分其他用途

    Let's think about various USES of double integrals.

    youdao

  • 来说说关于建立二重积分的事。

    So, the first topic will be setting up double integrals.

    youdao

  • 这边平面上普通二重积分

    This side here is a usual double integral in the plane.

    youdao

  • 没有必要对二重积分重新命名了。

    The double integral side does not even have any kind of renaming to do.

    youdao

  • Szdxdy二重积分

    We will end up with double integral on S of z dxdy.

    youdao

  • 懂得如何计算一个函数二重积分

    You know how to compute a double integral of a function.

    youdao

  • 一个建立计算二重积分

    One is setting up and evaluating double integrals.

    youdao

  • 但是我们二重积分

    But let's do it as a double integral.

    youdao

  • 这也就是二重积分意义

    That is what a double integral means.

    youdao

  • 由于我们才刚开始二重积分的缘故。

    That is because we are only doing double integrals so far.

    youdao

  • 说明了,可以极坐标二重积分

    The claim is we are able, to do double integrals in polar coordinates.

    youdao

  • 由于表面维的,所以结果二重积分

    Because a surface is a two-dimensional object, that will end up being a double integral.

    youdao

  • 区域R面积函数1R上二重积分

    The area R is the double integral over R of a function one.

    youdao

  • 就是二重积分基本定义了。

    That's the basic definition.

    youdao

  • 我们已经学如何建立这种二重积分公式

    We've seen various formulas for how to set up the double integral.

    youdao

  • 当然还要学习如何计算二重积分

    Of course, we will have to see how to compute it.

    youdao

  • 至此已经得到了,用来计算二重积分的所有量。

    Now I have everything I need to compute my double integral.

    youdao

  • 总之,就是几何方法或是曲面上建立二重积分

    Use geometry or you need to set up for double integral of a surface.

    youdao

  • 大多数情况下,我们需要了解怎样建立二重积分

    But most of the time we need to learn how to set up double integrals.

    youdao

  • 实际上我们二重积分定义并不严谨,应该怎样严格地定义

    OK, so actually, how do we define it, that's not really much of a definition yet.

    youdao

  • 二重积分可以用来得到关于这个区域某些信息或者这个区域一个函数平均值等等

    We can use that to get information about maybe the region or about the average value of a function in that region and so on.

    youdao

  • 二重积分可以用来得到关于这个区域某些信息或者这个区域一个函数平均值等等

    We can use that to get information about maybe the region or about the average value of a function in that region and so on.

    youdao

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