You take the square root, and that's the focal distance.

So I've traveled the distance of a wavelength, and how long did it take me to travel that distance?

Let's take the distance of each of the points in the sample.

Let's try to do that distance is equal to let me take a

We're dealing with a distance, so we can't take the negative square root.

So it would be that distance plus that distance plus that distance plus that distance.

So we've figured out that if you take this distance right here and add it to this distance right here, it'll be equal to 2a.

This distance is the same distance as this distance right there.

This distance is the distance squared.

From that distance to that distance.

So if this distance is the same as this distance, then the magenta distance minus this blue distance is going to be equal to this green distance.

This distance squared plus this distance squared is going to equal that distance squared.

Distance

Distance

Distance

Distance

Distance

That this distance is equal to this distance

This magenta distance minus this light blue distance.

If this is one focus point right here, and this is the other focus point, this ellipse could be defined as the set of all points, or the locus of all points, where if I take the distance of any one of these points that exist on the ellipse and take the distance to each of the locuses sorry, each of the focuses if I take that nope, I don't want to do that if I take that distance and add it to this distance, so

But even if we take this point right here and we say, OK, what's this distance, and then sum it to that distance, that should also be equal to 2a.

So that distance is the same as that distance.

We're measuring a distance a distance to go around.

This distance right here is 3, this distance right here is 3, this distance right here is 2, this distance right here is 2.

And so if this is at distance 0, we could call this distance out here distance d.

Or you could even take this y coordinate 2 minus negative 6 will give you that distance, 8.

If you contact him we will not move in and take him until you're a safe distance away.

Subject Distance

Subject Distance

Maximum distance

Fade distance

Slice distance

Distance exponent

Min distance

Distance Test

Angular Distance

Angular distance

Measure Distance

Subject distance

Distance range

Long distance?

Long distance.

Long distance.

Long distance?

Long distance.