Does anyone have a cool example of a parametric equation that can be used in 2010s new equation driven curve function? I have some basic parametric equations, but I'm looking for something that shows what it is capable of.

Also, does anyone have any examples of 3D equations? The new functionality looks cool as far as I can test it. I'm not that familiar with 3D cartesian curve equations. Someone want to point me to a source?

Thanks,

Matt