$MathML Tutorial$

MathML - Underscript

<munder> tag is used to draw underscript. It adds an accent or a limit under an expression.

Syntax

Here is the simple syntax to use this tag −

<munder> base underscript </munder>

Parameters

Here is the description of all the parameters of this tag −

base − base expression on which the underscript is to be drawn.
underscript − underscript.

Attributes

Here is the description of all the attributes of this tag −

accentunder − If true, under-script is an accent, and is drawn closer to the base expression. If false, under-script is a limit over the base expression. Default is false.
align − To specify the alignment of the under-script. Valid are: left, center, and right.
class, id, style − Used with stylesheets.
href − To specify a hyperlink to a specified uri.
mathbackground − To specify the background color. Valid formats are #rgb, #rrggbb and html color names.
mathcolor − To specify the text color. Valid formats are #rgb, #rrggbb and html color names.

Example

Let's draw an underscript.

Live Demo

<math xmlns = "http://www.w3.org/1998/Math/MathML">
   <munder accent="true">    
     <mrow>    
       <mi> x </mi>    
       <mo> + </mo>    
       <mi> y </mi>    
       <mo> + </mo>    
       <mi> z </mi>    
     </mrow>    
     <mo>&#x23F;</mo>    
   </munder>
</math>

Output

\underset{ȿ}{x + y + z}