Subscript

Usage

To attach a subscript to an expression, use the PhpOffice\Math\Element\Subscript class.

Methods

getBase

The method has no parameter.

getSubscript

The method has no parameter.

setBase

The method has one parameter :

• PhpOffice\Math\Element\AbstractElement $element

setSubscript

The method has one parameter :

• PhpOffice\Math\Element\AbstractElement $element

Example

Math

$$X_2$$

XML

<math display="block">
  <msub>
    <mi>X</mi>
    <mn>2</mn>
  </msub>
</math>

PHP

<?php

use PhpOffice\Math\Element;
use PhpOffice\Math\Math;

$math = new Math();

$subscript = new Element\Subscript();
$subscript->setBase(new Element\Identifier('X'));
$subscript->setSubscript(new Element\Numeric(2));

$math->add($subscript);