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Matrix notation

I'm a bit confused on the notation used in my notes, and was just wondering if someone could tell me what it means. M_n(Z). That's M subscript n and Z is the integers. I hope it's a commonly used notation everywhere if not nevermind. :tongue:
EDIT: Is it just a nxn matrix with integers as the elements?
(edited 13 years ago)
Reply 1
yes as you suggested but I've not often come across it like that.
Thanks!

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