y plane

Sometimes if it's the volume between the x, y plane and the graph of some function, you can just set it up directly as a double integral.

y OK, so for each value of x and y, yeah, we have x, y in the x, y plane, then we'll plot the point in space at position x, y.

We might want to also figure out where the surface intersects the x, y plane.

And I'm drawing here the X-Y plane. And I'm gonna put, plot all the points that satisfy that first equation.

Probably the most logical one, actually, would be just to choose a disk in the x, y plane.

Anyway, that is how you can basically project the vectors of this area element onto the x, y plane in a way.

Let's say that we will look at the special case where our curve C is actually a curve in the x, y plane.

Then I will have a little piece of x, y plane that is in here.

In fact, that is, naked oats oats , oat flour or Y plane.

For example, face1. normal returns [0, 0, 1] because the z direction is perpendicular to the x-y plane.

You go back to the same x-y plane;