Talk:Quincunx matrix

Why does this exist?
This article has existed since 2008 and since then we've only been able to write two sentences about this matrix. As someone somewhat knowledgeable in linear algebra, I've never heard of this name for this matrix, and I can't really see much relevant about it (not to mention, why is the -1 entry in the top right specifically?). This seems like a clear and cut deletion candidate to me. viiii (talk) 01:02, 6 June 2024 (UTC)