Evolute of a curve

Tangent to This Curve

Directrix of a Conic

The directrix line of a conic.

Asymptotes of a Hyperbola

This is an Age Line.

Evolute of this curve

A nice visual composition of symmetry.

Tangent to This Conic

Tangent to This Cubic Curve

Where do they start? There's lines on your hands and lines on your feet. There's lines on the sidewalk and in the street. There's lines on the buildings and on the walls. There's even some lines on a basketball. And not every line happens to be straight. Like the line of potatoes on my diner plate. And what about the lines like the railroad tracks. You mean parallel lines?

The two asymptotes of a hyperbola.

Construct a line perpendicular to this line

So let me draw a line that connects those two.

Construct a conic with this line as directrix

This time let's do 97 times 86.

That's where all of the rest of the light in the universe is supposed to go

And there we are, I can give them to you.

I was placed at the center of that war because I was covering the war from the northern part of Iraq.

Construct a line parallel to this line

Select a line perpendicular to the new line...

This line is parallel to that.

Construct the directrix of this conic

And then you get to Moscow.

The line tangent to a curve

That an ellipse is just a squished circle.

Line border width

Line border color

Line style

Line Properties

Line color

Line width

Line Color

Line Width

Line Color...

minutes

feet

nautical miles

light years

milliseconds

Line Edit

Line

line

Lines

Let's look at more data, which line would you pick?