Ellipse: Revision history

9 January 2021

• curprev 20:2720:27, 9 January 2021‎ imported>Mark Widmer‎ 23,360 bytes +23,360‎ Revised "circle" links to go to Circle_(mathematics), rather than disambig page.

1 October 2013

• curprev 05:4905:49, 1 October 2013‎ imported>Meg Taylor‎ 23,339 bytes +4,008‎ No edit summary

29 August 2013

• curprev 06:0406:04, 29 August 2013‎ imported>John Stephenson‎ m 23,346 bytes 0‎ moved Ellipse/Draft to Ellipse: citable version policy

29 July 2010

• curprev 15:2615:26, 29 July 2010‎ imported>Hayford Peirce‎ m 23,346 bytes +267‎ Ellipse moved to Ellipse/Draft

27 July 2010

• curprev 03:5503:55, 27 July 2010‎ imported>Peter Schmitt‎ m 23,346 bytes −1‎ →‎Second degree equation: degenerated --> degenerate

26 July 2010

• curprev 16:0416:04, 26 July 2010‎ imported>Peter Schmitt‎ 23,347 bytes +268‎ →‎Second degree equation: make explicit: not degenerated
• curprev 14:1914:19, 26 July 2010‎ imported>Peter Schmitt‎ 23,313 bytes +49‎ →‎Proof: Part 1 and 2
• curprev 14:1114:11, 26 July 2010‎ imported>Peter Schmitt‎ 23,264 bytes +185‎ →‎Proof: argument added
• curprev 13:5113:51, 26 July 2010‎ imported>Peter Schmitt‎ 23,079 bytes +3,748‎ →‎Second degree equation: conic section
• curprev 13:4613:46, 26 July 2010‎ imported>Peter Schmitt‎ 23,071 bytes +1,196‎ →‎Proof: oops
• curprev 09:2009:20, 26 July 2010‎ imported>Peter Schmitt‎ 23,071 bytes +120‎ →‎Proof: distance of points is written PQ not |PQ|m and mathrm
• curprev 09:1309:13, 26 July 2010‎ imported>Peter Schmitt‎ m 22,951 bytes −2‎ typo
• curprev 09:1009:10, 26 July 2010‎ imported>Peter Schmitt‎ 22,953 bytes +34‎ lower bound for d
• curprev 09:0609:06, 26 July 2010‎ imported>Peter Schmitt‎ 22,919 bytes +22‎ moving extreme cases to end of introduction
• curprev 08:3908:39, 26 July 2010‎ imported>Peter Schmitt‎ 22,897 bytes +133‎ →‎Algebraic form: changed to characterization
• curprev 08:3008:30, 26 July 2010‎ imported>Peter Schmitt‎ 22,764 bytes +889‎ →‎Algebraic form: other direction
• curprev 04:0604:06, 26 July 2010‎ imported>Peter Schmitt‎ 21,929 bytes +54‎ formatting, and a -> b

25 July 2010

• curprev 19:2819:28, 25 July 2010‎ imported>Peter Schmitt‎ 21,924 bytes +2‎ →‎Proof: less confusing so, I hope
• curprev 18:4218:42, 25 July 2010‎ imported>Peter Schmitt‎ 21,922 bytes +47‎ add brief justification, and rm an "l" from elllipse
• curprev 18:3218:32, 25 July 2010‎ imported>Peter Schmitt‎ 21,875 bytes +2,544‎ →‎Gardener's construction: correct names of foci
• curprev 18:3118:31, 25 July 2010‎ imported>Peter Schmitt‎ 21,899 bytes −64‎ →‎Second degree equation: rm accidental link to license ....
• curprev 18:2818:28, 25 July 2010‎ imported>Peter Schmitt‎ 21,960 bytes −2‎ →‎Proof: swap interchanged < and > / rm space
• curprev 18:2418:24, 25 July 2010‎ imported>Peter Schmitt‎ 21,962 bytes −1‎ →‎Second degree equation: rearranging a display, remove "."
• curprev 18:1718:17, 25 July 2010‎ imported>Peter Schmitt‎ 21,963 bytes −2‎ →‎Eccentricity: spurious "e"
• curprev 18:1418:14, 25 July 2010‎ imported>Peter Schmitt‎ 21,965 bytes +12‎ →‎Eccentricity: missing index
• curprev 18:1118:11, 25 July 2010‎ imported>Peter Schmitt‎ 21,953 bytes −8‎ →‎Conic section: two words too much
• curprev 18:0818:08, 25 July 2010‎ imported>Peter Schmitt‎ 21,961 bytes +1,599‎ missing )

24 July 2010

• curprev 14:2314:23, 24 July 2010‎ imported>Peter Schmitt‎ 21,960 bytes −1‎ →‎Proof: repairing statement
• curprev 14:1214:12, 24 July 2010‎ imported>Peter Schmitt‎ 21,961 bytes +160‎ →‎Proof: general necessity
• curprev 09:1909:19, 24 July 2010‎ imported>Peter Schmitt‎ 21,801 bytes +332‎ →‎Proof: necessary if determinant not zero
• curprev 08:3108:31, 24 July 2010‎ imported>Peter Schmitt‎ 21,469 bytes +57‎ →‎Proof
• curprev 06:5806:58, 24 July 2010‎ imported>Peter Schmitt‎ 21,412 bytes +5‎ →‎Proof: appearance of formula
• curprev 06:5106:51, 24 July 2010‎ imported>Peter Schmitt‎ 21,407 bytes +982‎ →‎Proof: separating sufficiency and necessity : sufficient
• curprev 06:2106:21, 24 July 2010‎ imported>Peter Schmitt‎ 21,480 bytes +105‎ →‎Polar representation relative to focus: exception e=1
• curprev 05:3405:34, 24 July 2010‎ imported>Peter Schmitt‎ 21,448 bytes +73‎ →‎Algebraic form: exception: line segment
• curprev 05:2705:27, 24 July 2010‎ imported>Peter Schmitt‎ 21,375 bytes +382‎ →‎Eccentricity: extreme cases
• curprev 05:2205:22, 24 July 2010‎ imported>Peter Schmitt‎ 21,197 bytes +204‎ →‎Conic section: partial rewrite
• curprev 04:3804:38, 24 July 2010‎ imported>Peter Schmitt‎ 21,073 bytes +80‎ point
• curprev 04:2404:24, 24 July 2010‎ imported>Peter Schmitt‎ m 20,993 bytes 0‎ axes/axis
• curprev 04:1604:16, 24 July 2010‎ imported>Peter Schmitt‎ m 20,993 bytes +568‎ No edit summary
• curprev 04:1504:15, 24 July 2010‎ imported>Peter Schmitt‎ m 20,994 bytes +15‎ formattin
• curprev 04:1304:13, 24 July 2010‎ imported>Peter Schmitt‎ 20,979 bytes +554‎ extreme cases

23 July 2010

• curprev 19:1419:14, 23 July 2010‎ imported>Peter Schmitt‎ 20,425 bytes +33‎ →‎Second degree equation: adding concise condition
• curprev 19:0619:06, 23 July 2010‎ imported>Peter Schmitt‎ 20,392 bytes +7‎ →‎Proof: some copyedits
• curprev 18:5318:53, 23 July 2010‎ imported>Peter Schmitt‎ 20,385 bytes +38‎ →‎Polar representation relative to focus: describing g
• curprev 18:4618:46, 23 July 2010‎ imported>Peter Schmitt‎ 20,347 bytes −15‎ →‎Algebraic form: removed brackets

21 July 2010

• curprev 19:4119:41, 21 July 2010‎ imported>Peter Schmitt‎ m 20,362 bytes +14‎ →‎Proof: formatting
• curprev 19:3919:39, 21 July 2010‎ imported>Peter Schmitt‎ m 20,348 bytes −1‎ →‎Proof: ell already defined
• curprev 19:3419:34, 21 July 2010‎ imported>Peter Schmitt‎ 20,349 bytes +192‎ →‎Second degree equation
• curprev 19:2519:25, 21 July 2010‎ imported>Peter Schmitt‎ 20,157 bytes +340‎ →‎Second degree equation: continue