Talk:Projective transformation
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| Mathematics rating: | B Class | Mid Priority | Field: Geometry | ||
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This article is too big, at the present state it is not at all an encyclopedia article, it is just a piece of a textbook. I think it should be moved to corresponding wiki-book project and here only minimal set of facts should stay. It should not contain proofs, infact I do not think these proofs are interesting enough to be here, but it is ok for a text-book. Tosha 06:52, 15 Apr 2004 (UTC)
I agree. This is...a bit much. The explicit calculations are distracting from getting an overall view. (Anon.)
There is already a place for discussing Moebius transformations and cross-ratio. I suppose some people might prefer the direct computational proof of invariance of cross-ratio; not to my taste. So I think some at least of the projective line material could be moved elsewhere.
Also, the transformation of conics is done in nineteenth-century style. I'm sure there is a better way of expressing it.
Charles Matthews 10:46, 7 May 2004 (UTC)
- If there's no objection, I may try to move some of the proofs over to "proof pages", analogous to others on Category:Article proofs. This should make the page easier to read and quicker to load, without loosing content. linas 03:43, 27 June 2006 (UTC)
The proofs should really be removed or moved out of this article. The article is now way too long. 82.181.94.57 (talk) 22:47, 13 January 2008 (UTC)
Too long and misses the main point: If V and W are vector spaces and T is a linear transformation from V to W, then T defines a projective transformation t from P(V) to P(W) if and only if T is invertible. —Preceding unsigned comment added by 129.67.144.152 (talk) 20:39, 16 February 2008 (UTC)
