A rectangular array of numbers or expressions. The plural is 'matrices'. An n x m matrix has n rows and m columns.
Find the determinant of this matrix.
by moley November 8, 2003
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a movie about a nerdy guy who takes a shit load of acid. think about it, a black man he has never met gives him a pill (granted acid is given in tabs, but ladies and gentlemen, you must understand, the nerdy man took a ridiculous amount of acid, ergo the large pill) which he says will open his mind, then we see that subsequently to taking this pill, the aforementioned nerdy man gains powers such as flying and stopping bullets. oh, and also he doesn't know what year it is and is fighting robots. well isn't that just a dandy acid trip.
neo: I R TEH GREATEST H4CK3R EVAR!!
black dude: yo nigga take this pill and its gonna make ya wake up and see the truth, word
neo: ok (swallows pill)
neo: whoa man, im like tripping man
black dude: that will be 200 dollars.

(why does the example need to use the word the matrix)
by da booze man October 16, 2007
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1. To spend a significant portion of a day or even a week watching without pause back to back episodes from multiple seasons of a single television series, replacing the experience of one's own reality and resulting in lingering effects on one's consciousness, once the final episode has been watched. 2. To re-set one's own immediate depressive state by immersing oneself in a mediated one (television, film, online social forum, amusement park, etc.) for an extended, but ultimately temporary, period of time.
Jan was in such a funk that she withdrew into her dorm room with a Costco carton of microwaveable popcorn to matrix on the complete seven seasons of Wire in the Blood, emerging three days later with a slight British accent and a less slight case of paranoia.
by Rugbyfitty May 3, 2011
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computer-generated dream world built to keep us under control in order to change a human being into a battery.
by ^___^ December 3, 2003
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For about 90% of internet-users the matrix is defined in Winuser.h

For about 9% of the very same population, the matrix is reality.

For the rest of that population, the matrix is a two-dimensional array.

Outside that population it's a Scifi/fantasy movie.
"Well, how do I rotate a that vector again? I so wished I remembered my calculations with matrices better."
by BelgainDSoul December 20, 2003
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1. Semi-literate sixth form philosophy.
2. Vanity project for vaguely talented directors.
3. Holy fucking shit, dude! Did you see that fucking explosion! Dude!
"Well, you can't really understand the matrix without reading Nietzsche. You just can't."
by Anonymous July 22, 2004
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