SOLUTION: if you hang a cable (like a suspension bridge) between two points, it may look like a parabola but it is not. What is the equation of a cable suspended between two points?

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Question 34889: if you hang a cable (like a suspension bridge) between two points, it may look like a parabola but it is not. What is the equation of a cable suspended between two points?
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
The curve is known as a Catenary (derived from the Latin for "chain") and its formula is:
y+=+a%2Acosh%28x%2Fa%29 This is a hyperbolic function.
"The catenary is the locus of the focus of a parabola rolling along a straight line."