I looked at the GraphFunctions example, I am trying a similar concept, only I'm using `Build List` and a point mesh.

I'd like to create a cubic curve, something in the family of a right strophoid (or Trisectrix of Maclaurin or Conchoid of de Sluze). I can't quite get it, how should I approach this (besides developing better math skills)? In the attached comp, I can successfully make a parabolic curve, but no success yet with the strophoid.

## Comments

### Thanks for that. I certainly

Thanks for that. I certainly need to keep an eye on Magneson's stuff.

Right now I'd really like to sort out how to get this equation to work with the comp I posted. I find using `Build List` or `Process List` versatile, and I know how to build onto this method and add features. So I'm trying to get a better grip on how best to take some math equation I find online, solve for y or whatever, and plug it into Vuo. I am trying to chip away at the math to understand it better (algebra/geometry/trig/vectors) hoping that once I get a couple equations to work, I'll be able to implement some other stuff on my backburner.

### Totally understand why you

Totally understand why you want to do it mathematically. Good luck.

### Yeah, I have had some luck

Yeah, I have had some luck tinkering around with the parametric modules, but those make meshes and I want to generate 2D/3D point structures. I'd love to see any math examples, especially algebra/geometry vs. trigonometry.

### Here's a composition that may

Here's a composition that may get you started.

### Much appreciated, Jean Marie!

Nice to see that work. Much appreciated, Jean Marie. If you have a public source for the formula, I'd love to have a look. Might have some clues for manipulating transformations like this.

### We found the formula on the

We found the formula on the page you referenced, right strophoid. It's the third equation, beneath the "The parametric form of the strophoid is" heading.

### Derp. :oops: I tried so many

Oh, duh. I tried a bunch of variations at the time, missed that combination, I guess. Thanks again!