Talk:Plücker matrix: Difference between revisions

Content deleted Content added

Inline

Revision as of 08:03, 30 July 2020

Mathematics Stub‑class Low‑priority

	Mathematics portal This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics
Stub	This article has been rated as Stub-class on Wikipedia's content assessment scale.
Low	This article has been rated as Low-priority on the project's priority scale.

Somebody please move this page

The correct spelling for Julius Plücker includes a German "Umlaut". Please also see the article on Plücker coordinates. — Preceding unsigned comment added by Aaichert (talk • contribs) 18:50, 23 November 2015 (UTC)[reply]

Many Erros due to Mixing of Different Conventions

Sadly, several formulas in the article are wrong, because different conventions are mixed. If homogeneous coordinates of points and planes are indexed by 0,...,3, then the "standard" ideal plane at infinity will have homogeneous coordinates 1:0:0:0 (and not 0:0:0:1). In the article, the convention 0,...,3 was mixed with the convention of indices 1,...,4. I would suggest to keep the convention 0,...,3 and to correct the formulas of the ideal plane, direction of a line etc. and all their consequences. EinMathematikerInAustria (talk) 08:03, 30 July 2020 (UTC)[reply]

@@ Line 4: / Line 4: @@
 The correct spelling for Julius Plücker includes a German "Umlaut". Please also see the article on [[Plücker coordinates]].  <small><span class="autosigned">—&nbsp;Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[User:Aaichert|Aaichert]] ([[User talk:Aaichert|talk]] • [[Special:Contributions/Aaichert|contribs]]) 18:50, 23 November 2015 (UTC)</span></small><!-- Template:Unsigned --> <!--Autosigned by SineBot-->
+== Many Erros due to Mixing of Different Conventions ==
+Sadly, several formulas in the article are wrong, because different conventions are mixed.
+If homogeneous coordinates of points and planes are indexed by 0,...,3, then the "standard" ideal plane at infinity will have homogeneous coordinates 1:0:0:0 (and not 0:0:0:1). In the article, the convention 0,...,3 was mixed with the convention of indices 1,...,4. I would suggest to keep the convention 0,...,3 and to correct the formulas of the ideal plane, direction of a line etc. and all their consequences.
+[[User:EinMathematikerInAustria|EinMathematikerInAustria]] ([[User talk:EinMathematikerInAustria|talk]]) 08:03, 30 July 2020 (UTC)