Lockup Calculating Arc Length of Ellipse
10-20-2014, 08:10 AM
Post: #8
 Wes Loewer Senior Member Posts: 352 Joined: Jan 2014
RE: Lockup Calculating Arc Length of Ellipse
(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
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 Messages In This Thread Lockup Calculating Arc Length of Ellipse - mkspence - 10-16-2014, 07:24 PM RE: Lockup Calculating Arc Length of Ellipse - Tim Wessman - 10-16-2014, 07:41 PM RE: Lockup Calculating Arc Length of Ellipse - Mark Hardman - 10-16-2014, 07:59 PM RE: Lockup Calculating Arc Length of Ellipse - parisse - 10-16-2014, 08:08 PM RE: Lockup Calculating Arc Length of Ellipse - Helge Gabert - 10-17-2014, 04:16 AM RE: Lockup Calculating Arc Length of Ellipse - mkspence - 10-17-2014, 05:07 AM RE: Lockup Calculating Arc Length of Ellipse - Helge Gabert - 10-17-2014, 03:00 PM RE: Lockup Calculating Arc Length of Ellipse - Wes Loewer - 10-20-2014 08:10 AM RE: Lockup Calculating Arc Length of Ellipse - Helge Gabert - 10-20-2014, 02:20 PM RE: Lockup Calculating Arc Length of Ellipse - parisse - 10-20-2014, 06:04 PM RE: Lockup Calculating Arc Length of Ellipse - Helge Gabert - 10-20-2014, 09:44 PM RE: Lockup Calculating Arc Length of Ellipse - peacecalc - 10-21-2014, 05:07 PM

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