# A term for “number of columns” of a matrix

Is there a single English word to denote the “number of columns” of a matrix?

For example, “dimensionality” of a $2\times 3$ matrix is $2\times 3$. I need a term for $3$ in this example. I can always just say “number of columns”, of course, but could I have a single word for it?

## Answer

There is a concept of wide and narrow data, so maybe you could use the term „width“ for the number of columns after you define it in order to avoid the ambiguity.

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aivanov