Lockup Calculating Arc Length of Ellipse

[Wes Loewer]

(10-17-2014 03:00 PM)Helge Gabert Wrote:  Well, yes, but the idea (for me) is to obtain an exact solution, if possible . . . if you wanted the approximate solution in the first place, fine, but why not just calculate that in Home?

I think this is one of those integrals that does not have a closed form solution.

Wolfram Alpha gives the exact answer as 4*E(-3) where E(x) is the "Complete Elliptic Integral of the Second Kind" which can be defined in terms an integral.

-wes