Lostgallifreyan wrote:
wrote in :
Except that a circle has a constant radius and a catenary has a constantly
changing radius.
If you can do a parabola that could be close enough. Not the same as a
catenary but a damn sight closer than a circle's arc, and much more likely a
form for a tool specialising in projecting energy to be able to do.
I just don't see the issue with a catenary.
The equation for a catenary is y = a * cosh (x / a).
All spreadsheets have a hyperbolic cosine function and can produce graphs.
Back in ye olden days we would use a math table and graph paper to plot
the function then use a ruler to get a straight line approximation.
--
Jim Pennino