curprev03:4703:47, 30 May 2024 Jacobolustalkcontribs 85,242 bytes−147 shorten hatnote to just point at Ellipsis, Eclipse. Folks looking for other meanings of those words can click through the hatnotes there to further disambiguation pagesundo
curprev15:3415:34, 24 January 2024 Kramertalkcontribs 85,396 bytes+1 →Polar form relative to focus: There was a error in the equation that I have now fixed. Note that before this equation was inconsistent with the one below it. Now it is consistent. It also now matches other sources on the internet, such as: https://math.stackexchange.com/a/3463417undo
curprev00:3300:33, 14 January 2024 Jacobolustalkcontribs 85,395 bytes+60 Undid revision 1195411828 by Pdx scooter (talk) empirically this formula is different. it's plausible the previous one could be simplified, but this is not it. make sure you double-check before making this kind of changeundoTag: Undo
13 January 2024
curprev19:0619:06, 13 January 2024 Pdx scootertalkcontribs 85,335 bytes−60 →General ellipse: The a, b formula doesn't actually depend on D, E & F. Simplified. Substituting the a, b and theta formulae into the A, B, C equations above and simplifying demonstrates that this is correct. That the Wolfram reference above may need to be updated, though note that the previous equations didn't exactly match what's in the reference either.undoTag: Reverted