Talk:Shear mapping

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[edit] Old question

Shear preserves all parallel lines as being parallel -- what is the name for a transform does not do this, turning a square into a trapezoid?

[edit] Re: shear matrix

I propose that this article and shear matrix be merged. Though that article was created with only two edits, it is a valuable resource on this topic. Only today did I learn of it and respond to the alert given by another editor. On the other hand, that article uses column vectors, instead of the in-line row vector approach. Since linear algebra depends on facility with both, this jump between pages gives some necessary exercise. Futhermore, the focus on two-dimensions at the outset, allows this article to be more introductory. In that view, the "fixed subspace form" section belongs more with shear matrix. Rgdboer 20:24, 4 September 2007 (UTC)

[edit] Moved here from Shear (mathematics)

Today I made the move and repaired most links in WP. If you find a reference to the old name, you're home now. The issue of row vector versus column vector continues to stand in the way of a merger with shear matrix; the value of ambidexterity being noted.Rgdboer 02:37, 14 November 2007 (UTC)