I've been looking for a solution to a problem that only seems to get more difficult the more I search or an answer.
It starts out with finding a solution to write the equation for a helix torus, which is not too difficult, but then it starts to get confusing when I ask for a double helix, but as a 'twisted ribbon'.
It would be similar to a DNA ribbon but solid, like if you were to take a strip of metal and twisted it at both ends.
I can show a figure of that, it would be the figure under "Helix B"...
The ribbon would have a curve that follows the axis of a torus.
Finding an equation thus far would be a great help.
My problem however does go into further detail from here, the 'ribbon' that I have in mind has a more exotic shape if I were to show a cross section of it and would eventually have to be converted into another expression; but I wouldn't expect anyone to want to go into further detail.
Would it possible to have someone get me started and then figure out where I need to go from here?