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(latex.info)array

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---

Enter node , (file) or (file)node

array
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     \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.