Talk:Triangular matrix: Difference between revisions

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==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-->