Revision as of 08:22, 2 December 2009 edit Nbarth (talk \| contribs) Autopatrolled, Extended confirmed users, Pending changes reviewers, Rollbackers 35,278 edits →Algebra of upper triangular matrices: frak ← Previous edit		Revision as of 08:24, 2 December 2009 edit undo Nbarth (talk \| contribs) Autopatrolled, Extended confirmed users, Pending changes reviewers, Rollbackers 35,278 edits →square matrix: reply Next edit →
Line 77: ==square matrix== Contrary to what this article claims, an upper-triangular matrix does NOT necessarily need to be square. I welcome someone who is familiar enough with the upper/lower definitions to fix this error. <span style="font-size: smaller;" class="autosigned">—Preceding [[Wikipedia:Signatures\|unsigned]] comment added by [[Special:Contributions/158.64.77.124\|158.64.77.124]] ([[User talk:158.64.77.124\|talk]]) 16:35, 9 November 2009 (UTC)</span><!-- Template:UnsignedIP --> <!--Autosigned by SineBot--> :“Square” is generally required, square matrices being generally more interesting. For non-square matrices one generally calls these “trapezoidal” matrices, which is mentioned in the article. :—Nils von Barth ([[User:Nbarth\|nbarth]]) ([[User talk:Nbarth\|talk]]) 08:24, 2 December 2009 (UTC)

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