# Talk:matrix

Definition from Wiktionary, the free dictionary

Doesnt matrix have a specific definition with respect to printing presses?--71.111.229.19 19:24, 27 May 2010 (UTC)

- It seems so. See Printmaking. Equinox ◑ 20:44, 27 May 2010 (UTC)

## The Matrix[edit]

There's nothing here to point as to why this name was given to a 1999 film (it wasn't just plucked from nowhere) and used too in Doctor Who, and why such a structure is different to a vortex for instance.

92.7.174.86 14:57, 5 October 2010 (UTC)

- Well, that would be Matrix in the first instance, and secondly we don't usually include words from 'fictional universes' because they're purely creations of their author rather than dictionary word. Appendix:Doctor Who would be valid. Mglovesfun (talk) 16:04, 5 October 2010 (UTC)

## Dimensionality[edit]

Strictly speaking, in Mathematics and Computers, Matrices are not limited to 2 dimensional (rectangular). They can have any dimentionality greater than zero. A one-dimensional matrix is called a vector. Three-dimensional matrices are very common. Four and five dimensions occur from time to time. And so on.

--Phil Petit