Deletion of Square Root of a 2x2 Matrix

Comment: per #HOWTO; also, given that this is mostly code, I wouldn't object to an A1 for lack of context
Stance: delete
Cited policy: Wikipedia:What Wikipedia is not (WP:NOT)

Comment: I wondered if the LaTeX source could have been a copyvio, but it appears that the author just prepared the doc in LaTeX. The author also uploaded :Image:Square Root of a Wiki.pdf‎, :Image:Square root of a wiki.pdf, :Image:Square Root of a Matrix.pdf and :Image:Square root of a matrix.pdf. "Source: My brain" |doesn't sound very encouraging (even if it's very much debated in case of mathematical proofs). I don't have time to check these out but they ''sound'' like they're related to this article. Looks like a little bit of a mess here
Stance: comment
Cited policy: Wikipedia:No original research (WP:NOR)

Comment: I think AfD was the right choice, not speedy.  The user is vaguely new (though this is not his first article by any means), and bit off more than he was prepared for, but that is no reason to  back.  He clearly put a lot of effort into bring the tex document into wikipedia format.  However, I think the  and #HOWTO comments apply fairly clearly to this personally-authored-essay-turned-wikipedia-article, as well as its image counterparts.  Should the images be nominated too?  Can they simply be prod'd
Stance: comment
Cited policy: Wikipedia:Please do not bite the newcomers (WP:BITE||WP:OR||WP:NOT)