Talk:Meet and join: Difference between revisions

Revision as of 07:34, 24 December 2021 view source Mike Battaglia (talk \| contribs) autopatrolled, Bureaucrats, confirmaccount-notify, emailconfirmed, Interface administrators, Sysops 1,399 edits oops, edit cruft ← Older edit		Revision as of 07:38, 24 December 2021 view source Mike Battaglia (talk \| contribs) autopatrolled, Bureaucrats, confirmaccount-notify, emailconfirmed, Interface administrators, Sysops 1,399 edits →Duality Newer edit →
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	- [[User:Sintel\|Sintel]] ([[User talk:Sintel\|talk]]) 13:51, 23 December 2021 (UTC)		- [[User:Sintel\|Sintel]] ([[User talk:Sintel\|talk]]) 13:51, 23 December 2021 (UTC)

			: It follows from the basic properties of matrix multiplication. If you have two row vectors v and w, then the null space of the concatenated matrix [v;w] is defined as those vectors mapping to (0,0), which means any such vector needs to map to 0 for both v and w. [[User:Mike Battaglia\|Mike Battaglia]] ([[User talk:Mike Battaglia\|talk]]) 07:38, 24 December 2021 (UTC)