Steven D'Aprano wrote: >> Steven D'Aprano wrote: >> >>> In matrix maths, there are an infinite number of >>> different matrices where all the elements are zero -- they are all >>> distinct, different, zeroes. > >> What do you even mean by that? By "matrix maths," do you just mean >> matrices whose elements are reals, or something else? > > Given any matrix M, there is a matrix Z such that M+Z = M. That matrix Z > is equivalent to zero in the reals, where x+0 = x.
Ah, of course. I knew this, I just misinterpreted your "distinct, different, zeroes" as referring to the elements but not the matrices. Just a misunderstanding. Every zero matrix is an additive identity, and there are an infinite number of them. That's certainly true. -- Erik Max Francis && [EMAIL PROTECTED] && http://www.alcyone.com/max/ San Jose, CA, USA && 37 20 N 121 53 W && AIM erikmaxfrancis There's a reason why we / Keep chasing morning -- Sandra St. Victor -- http://mail.python.org/mailman/listinfo/python-list
