array

LaTeX2e help 1.6

### 2.6.1: array

      \begin{array}{col1col2...coln}
      column 1 entry & column 2 entry ... & column n entry \\
       .
       .
       .
      \end{array}

Math arrays are produced with the array environment. It has a single mandatory argument describing the number of columns and the alignment within them. Each column, `coln`, is specified by a single letter that tells how items in that row should be formatted.

- `c` --- for centred
- `l` --- for flush left
- `r` --- for flush right

Column entries must be separated by an `&`. Column entries may include other LaTeX commands. Each row of the array must be terminated with the string `\\`.

Note that the `array` environment can only be used in math mode, so normally it is used inside an `equation` environment.