Talk:Shoelace formula

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Wording

The introduction talks about the "determinant" of a quantity. Since this quantity is just a simple arithemetic expression, and not a square matrix, shouldn't it just talk about the "absolute value"? Lehnekbn (talk) 09:08, 12 June 2013 (UTC)[reply]

Missing source

The first source, at http://staff.imsa.edu/math/journal/volume2/articles/Shoelace.pdf, appears to have moved. (I obtained a 404 Not Found error when I attempted to access it today). In fact, this applied to the entire journal, although http://staff.imsa.edu/ still worked. I'll wait and search for awhile, but if nothing turns up I'll have to remove the reference and use another.

I recreated this page that MZMcBride had previously deleted since he did so under WP:CSD G7 (author request), interpreting my blanking of my only edit to that page as a request for deletion. Actually, I just realized my comment was unnecessary and could be interpreted as negative criticism, though that was not its intent. Nat2 (talk) 00:03, 25 July 2012 (UTC)[reply]

Self-intersecting polygons

Some interesting things happen when the formula is (mis)used to find the areas of self-intersecting polygons. Double sharp (talk) 14:15, 18 February 2013 (UTC)[reply]