Variation on Pendulum Function

[belliott4488]

Maybe this will help: http://mathforum.org/library/drmath/view/53706.html"

It derives an equation for the parameters of a catenary formed by a chain hanging from two point at different heights, which is what you get when you tilt your phone. Unfortunately, it doesn't have a closed-form solution, but must be solved iteratively - again, demanding on the processor, but perhaps not too bad if you don't need a truly accurate answer.

 

[alyosha47]

Glad I found this thread, even if it's gone a little bit cold...

I'm curious if you ever got it to work. I'm thinking of making a chain-nose game, like the old cardboard ones from the 40s. You know, where you make the chain form all different sorts of nose shapes on a painted face?

This would be a simple caternary problem were it not for the friction against the board, and the possibility of shaking the whole thing and producing a wild and bumpy chain-path.

Anyway, I'd be interested to learn if and how you ever solved this problem?

Thanks.

Alyosha.