# display_matrix

From WeBWorK

### display_matrix

**Description**

Provides a rectangular display of a matrix object by producing the appropriate TeX code for displaying the contents.

**Syntax**

display_matrix($matrix_object)

**Params**

$matrix_object is a matrix object. See Matrix.pm and "RealMatrix.pm"

**Returns**

String which represents the matrix in TeX format used in math display mode.

**Examples**

Usually used in BEGIN_TEXT/END_TEXT blocks as\{ display_matrix($A) \}

\{ display_matrix([ [ 1, 3], [4, 6] ]) \}

\{ display_matrix([ [ ans_rule(), ans_rule()], [ans_rule(), ans_rule()] ]) \}

**Notes**

Note that the order of answers inserted in the last example is across each row first. This is usually what is expected, but you can use "NAME_ANS_RULE" if more control is desired.

See Matrix.pm for matrix methods which specify display.