Torus, Tube, Bend & Fuse

In Houdini, a Torus is a primitive type. But I wanted to make a torus from a tube, and to do so I learned how to use the Bend and Fuse nodes. Better still, by using parameter expressions I was able to make my new Torus network flexible so that you could change the parameters on the Tube, and the result would still be a Torus.