**Dimensions of a Matrix**

The number of rows and columns of a matrix, written in the form rows×columns. The matrix below has 2 rows and 3 columns, so its dimensions are 2×3. This is read aloud, "two by three."

Note: One way to remember that **R**ows come first and **C**olumns come second is by thinking of **RC** Cola^{®}.

**See also**

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