I am an amateur programmer, with limited abilities.
A program like k3dsurf allows the entry of equations.
So a better programmer might be able to create a program to allow equation entry.

I have come across dozens of dozens of other attractors. Perhaps there are an infinite number?
For example, the Aizawa attractor has 6 parameters, a,b,c,d,e,f. Yet it still has 3 simple equations.
So these additional parameters could be added to the htm file.

http://jlswbs.blogspot.com/2011/10/aizawa.html

Alternatively, the code could be created to allow selection of pre-programmed attractors from a list. I was thinking of asking Michael how to do this in code, but one should first make an effort?
For example, to create a circle in MoI, first the circle command is selected, then another selection pops up to allow the choice of which type of circle
to create.

I started to add lineweb code to add a point output option, but ran out of energy that night :-)
Also thought about allowing the user to enter start points, or have 3 more inputs, x,y,z start points entry...

- Brian