MathML Matrices

In MathML, the <mtable> element is used to create tables or matrices. The <mtable> element contains only <mtr> and <mtd> elements. These elements are similar to <table>, <tr> and <td> elements in HTML.

For example: To create a 3×3 matrix, having the following data:

Equivalent MathML code:

<math xmlns=’http://www.w3.org/1998/Math/MathML’ display=’block’>
<mrow>
<mo>[</mo>
<mtable>
<mtr>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
</mtr>
</mtable>
<mo>]</mo>
</mrow>

Note: By default, an <mtable> element has no borders at all. So, you have to add a <mo> containing a fence character (e.g. ‘[‘, ‘]’, ‘(‘, ‘)’, ‘|’) before and after the <mtable> when you specify a matrix or the determinant of a matrix.

MathML Matrix Attributes

Index	Attributes	Description
1)	align	It specifies the vertical alignment of the table with respect to its environment. Its possible values are: axis, baseline, bottom, center, top.
2)	class, id, style	It is provided for use with stylesheets.
3)	columnalign	It specifies the horizontal alignment of the cells. Its possible values are: left, center (default) and right.
4)	columnlines	It specifies column borders. Multiple values separated by space are allowed and apply to the corresponding columns (e.g. columnlines=”none none solid”). Its possible values are: none (default), solid and dashed.
5)	columnspacing	It specifies the space between table columns.
6)	displaystyle	It refers a Boolean value specifying whether more vertical space is used for displayed equations or, if set to false, a more compact layout is used to display formulas.
7)	frame	It specifies borders of the entire table. Its possible values are: none (default), solid and dashed.
8)	framespacing	It specifies additional space added between the table and frame.
9)	href	It is used to set a hyperlink to a specified uri.
10)	mathbackground	It specifies the background color. You can use #rgb, #rrggbb and html color names.
11)	mathcolor	It specifies the text color. You can use #rgb, #rrggbb and html color names.
12)	rowalign	It specifies the vertical alignment of the cells. Multiple values separated by space are allowed and apply to the corresponding rows (e.g. rowalign=”top bottom axis”). Its possible values are: axis, baseline (default), bottom, center and top.
13)	rowlines	It specifies row borders. Multiple values separated by space are allowed and apply to the corresponding rows (e.g. rowlines=”none none solid”). Its possible values are: none (default), solid and dashed.
14)	width	It specifies the width of the entire table. It accepts length values.