It elevates the temperature.

So what's the reality?

Your focus,

And then we can essentially just add and subtract them from the center.

It's equidistant from a focus and a directrix, where this is the focus.

And let's say I have some other point.

So let's call that a directrix.

And this is f2.

And it's for focus.

We have focused on the worst case scenario.

And what we want to do is, we want to find out the coordinates of the focal points.

Well, the first thing you do is though I've never well, we could just figure out the focal length just by plugging into the formula.

The square root of that.

Something really weird is going on here.

It's not just focused on the particular, it's focused on kind of the metalevel.

Let's focus on the conversations between our friends and our family and our coworkers and our loved ones.

So, the focal points are going to sit along the semi major axis.

And we'll play with that a little bit, and we'll figure out, how do you figure out the focuses of an ellipse.

I'll call that well, we'll call that a focus because it will be a focus.

Set here equivalent focal length assuming a 35mm film camera, in mm. A value of 0 means the focal length is unknown.

So if we can solve for b and k, we know what the focus and the directrix are.

Focal length

Focal

Focal Length

Focal blur

Focal point

First Focus

Second Focus

Focal Length

Focal length

And hard to keep focus.

Now we're asking you what is the focal length if an object of size 20 m that is 400 meters out if we observe it to be 1 mm on our projection surface.

This should already pop into your brain as a Pythagorean theorem problem.

Or b which is, remember, what was b?

Her face is in focus.

And that's what we set out to figure out in the beginning.

And you enter that space, and you feel like, Wow!

Let's take it right there.

There are a few things about Jelly Bean we wanted to cover today

An ellipse constructed by its focuses and a point that pertains to it

So there's one point that just by looking at it we could say is going to be in our locus.

So they're very closely related.

The focus of the talk is put on the content.

The distance of this point to the image plane up uppercase Z.

Here's my first question. Suppose X is 10 m in size.