User contributions for Geometryfan
16 December 2023
- 13:2913:29, 16 December 2023 diff hist +720 User talk:Geometryfan →golden parallelogram: Reply Tag: Reply
- 04:4004:40, 16 December 2023 diff hist +1,762 User talk:Geometryfan →golden parallelogram: Reply Tag: Reply
15 December 2023
- 19:4319:43, 15 December 2023 diff hist +764 User talk:Geometryfan →golden parallelogram: Reply Tag: Reply
- 07:0507:05, 15 December 2023 diff hist +445 User talk:Geometryfan →golden parallelogram: Reply Tag: Reply
6 December 2023
- 13:5413:54, 6 December 2023 diff hist +315 Napoleon's theorem →Generalisations: Added hexagon generalization by Dao Than Oai current
- 13:4813:48, 6 December 2023 diff hist +122 m Napoleon's theorem →Dao Than Oai’s generalization
- 13:4413:44, 6 December 2023 diff hist +543 Napoleon's theorem →Generalisations
30 November 2023
- 20:2820:28, 30 November 2023 diff hist +7 m Golden ratio →Geometry
- 20:2620:26, 30 November 2023 diff hist +1 m Golden ratio →Golden parallelogram
- 20:2520:25, 30 November 2023 diff hist +1 m Golden ratio →Golden parallelogram
- 20:2420:24, 30 November 2023 diff hist +835 Golden ratio →Geometry: ... Added an entry for a golden parallelogram
29 November 2023
- 05:5805:58, 29 November 2023 diff hist −27 m Golden ratio →External links Tag: Reverted
- 05:5605:56, 29 November 2023 diff hist +253 m Golden ratio →External links: ... Added an external link to Golden Quadrilaterals Tag: Reverted
14 November 2023
- 20:5620:56, 14 November 2023 diff hist −1 m Cyclic quadrilateral →Supplementary angles
- 20:5520:55, 14 November 2023 diff hist +30 m Cyclic quadrilateral →Supplementary angles
- 20:5020:50, 14 November 2023 diff hist 0 m Cyclic quadrilateral →Supplementary angles
- 20:4820:48, 14 November 2023 diff hist −49 m Cyclic quadrilateral →Supplementary angles: Removed DOI from reference
- 20:4520:45, 14 November 2023 diff hist +608 m Cyclic quadrilateral →Supplementary angles: ... Added further generalization
- 18:4418:44, 14 November 2023 diff hist +1 m Jacobi's theorem (geometry) No edit summary
- 18:3218:32, 14 November 2023 diff hist +755 m Jacobi's theorem (geometry) Added a further generalization of the Jacobi point
- 18:2018:20, 14 November 2023 diff hist +355 m Jacobi's theorem (geometry) No edit summary
- 18:1918:19, 14 November 2023 diff hist +92 m Fermat point →External links Tag: Reverted
13 November 2023
- 19:1419:14, 13 November 2023 diff hist +14 m Similarity (geometry) →External links
- 19:1419:14, 13 November 2023 diff hist +28 m Similarity (geometry) →External links
- 19:1219:12, 13 November 2023 diff hist +113 m Similarity (geometry) →External links
10 October 2023
- 05:3705:37, 10 October 2023 diff hist −19 m Perpendicular bisector construction of a quadrilateral →External links current
- 05:3605:36, 10 October 2023 diff hist +320 m Perpendicular bisector construction of a quadrilateral →References: Relevant external link added
- 05:3205:32, 10 October 2023 diff hist +11 m Perpendicular bisector construction of a quadrilateral →Properties
- 05:3105:31, 10 October 2023 diff hist +368 m Perpendicular bisector construction of a quadrilateral →Properties: Additional property & refence
21 August 2023
- 03:5603:56, 21 August 2023 diff hist +242 m Napoleon's theorem →Jha-Savaran Generalization
- 03:5003:50, 21 August 2023 diff hist +58 m Napoleon's theorem →Jha-Savaran Generalization
- 03:4703:47, 21 August 2023 diff hist +542 m Napoleon's theorem →Generalisations: Added a new generalization discovered by two school boys from India
23 June 2023
- 21:2921:29, 23 June 2023 diff hist −6 m Conway circle theorem No edit summary
- 21:2721:27, 23 June 2023 diff hist +648 Conway circle theorem Related publication
- 21:1521:15, 23 June 2023 diff hist +277 m Conway circle theorem Added related page with published article to →External links
14 May 2023
- 19:3419:34, 14 May 2023 diff hist +246 m Joseph Jean Baptiste Neuberg Added external link to a theorem by Neuberg (and its generalization) current
31 August 2021
- 06:5506:55, 31 August 2021 diff hist −80 m Hiroshi Haruki →External links
13 November 2020
- 15:3715:37, 13 November 2020 diff hist +1 m Varignon's theorem →Special cases: Reverted back as I do not know how to correctly ad another reference Tag: Manual revert
- 15:3415:34, 13 November 2020 diff hist −31 m Varignon's theorem →Special cases: Reverted bscl to to original as I do not know how to correctly add Reference 7, p. 169 Tag: Reverted
- 15:3315:33, 13 November 2020 diff hist +10 m Varignon's theorem →Special cases Tag: Reverted
- 15:3115:31, 13 November 2020 diff hist −17 m Varignon's theorem →Special cases Tag: Reverted
- 15:3015:30, 13 November 2020 diff hist +37 m Varignon's theorem →Special cases: added a reference which also mentions the result about a Varignon parallelogram being a rectangle i and only if the quadrilateral is orhodiagonal Tag: Reverted
- 15:1615:16, 13 November 2020 diff hist 0 m Varignon's theorem →External links: Just corrected a URL to an updated one
16 September 2020
- 07:4907:49, 16 September 2020 diff hist +347 m Cyclic quadrilateral →Supplementary angles: Added generalization by Duncan Gregory
15 September 2020
- 06:3006:30, 15 September 2020 diff hist +1 m Cyclic quadrilateral →Supplementary angles
- 06:2906:29, 15 September 2020 diff hist +13 m Cyclic quadrilateral →Supplementary angles
- 06:2606:26, 15 September 2020 diff hist +416 m Cyclic quadrilateral →Supplementary angles: Added Duncan Gregory generalization of forward iimplication.
13 September 2020
- 08:3408:34, 13 September 2020 diff hist 0 m Spieker circle →Nine-point circle and Euler line: Corrected '... were first found to by ..." to " ... were first found to be ..."
12 September 2020
- 14:1314:13, 12 September 2020 diff hist +238 m User talk:Geometryfan →Consideraton of Relevant Link
6 September 2020
- 10:1610:16, 6 September 2020 diff hist +671 m User talk:Geometryfan →Managing a conflict of interest
