球面坐标

spherical coordinate───球面坐标

cylindrical coordinates───圆柱坐标；柱面坐标

Cartesian coordinates───笛卡儿坐标

polar coordinates───n.[数][天]极坐标

spherical triangles───球面三角形

generalized coordinates───[数]广义坐标

aspherical surfaces───非球面

But let's do it in spherical coordinates because that's the topic of today.───但我们用球坐标来做，因为这才是今天的主题。

The variable or distance to the origin in spherical coordinates.───变量或是在球座标中距离原点的距离.

have to figure out how to set up our triple integral in spherical coordinates.───看看怎么，在球坐标中建立三重积分。

That will give you a good idea of what kinds of things we've seen in spherical coordinates.───这将会给你一些，关于我们已经在球坐标中学过的东西的好的想法。

So, one is, these are called spherical coordinates because if you fix the value of rho, then you are moving on a sphere centered at the origin.

So, what's the idea of spherical coordinates?

Well, spherical coordinates become appealing because the function you are averaging is just rho while in other coordinate systems it's a more complicated function.

Spherical coordinates are a way of describing points in space in terms of three variables.

So now we're going to triple integrals in spherical coordinates.

But let's do it in spherical coordinates because that's the topic of today.

And, you switch it into spherical coordinates.

The Laplacian in the columnar and spherical coordinates is deduced by using the derivative principle of the multivariable functions.

The variable or distance to the origin in spherical coordinates.