Talk:Matrix (mathematics)

3D Matrix[change source]

The current version of the article says "A matrix can have more than 2 dimensions, such as a 3D matrix. Also, a matrix can be one-dimensional, as a single row or column." As far as I know a '3D matrix' is a misuse of terminology, it should be called an array. (A tensor if we require algebraic properties but this seems unfit for the simple article.) A. Van Werde (talk) 15:54, 31 December 2019 (UTC)[reply]

Doesn't this differ by field (math, physics, or computer science)? Chamaemelum (talk) 16:34, 28 August 2023 (UTC)[reply]

Imagine you have sensors, each sensor does different measurements. If your sensor measures 4 values, you get a set of 4 values, each time unit. To make this easier, you write that as a vector. Now you group all your sensors together. Which means you get a matrix, with one row for each senor. How you call that thing is a question of naming. And no, it doesn't matter if you have 2, 3, 5, or 99 columns per row. Eptalon (talk) 19:05, 28 August 2023 (UTC)[reply]