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Hello,

Sorry but there's no trial of the DOCXPath functionality, as it's only available in Advanced and Premium licenses.

This is a simple sample about how to set left alignment in equations using DOCXPath:

<?php

require_once 'classes/CreateDocx.inc';

$docx = new CreateDocx();

$mathML = '<math xmlns="http://www.w3.org/1998/Math/MathML">
        <mrow>
                <mi>A</mi> 
                <mo>=</mo>
                <mfenced open="[" close="]">
                        <mtable>
                                <mtr>
                                        <mtd>
                                                <mi>x</mi>
                                        </mtd> 
                                        <mtd>
                                                <mn>2</mn>
                                        </mtd>
                                </mtr>
                                <mtr>
                                        <mtd>
                                                <mn>3</mn>
                                        </mtd>
                                        <mtd>
                                                <mi>w</mi>
                                        </mtd>
                                </mtr>
                        </mtable>
                </mfenced>
        </mrow>
</math>';

$docx->addMathEquation($mathML, 'mathml');

$wordML = new WordFragment($docx);
$wordML->addWordML('<m:oMathParaPr><m:jc m:val="left"/></m:oMathParaPr>');

$referenceNode = array(
        'customQuery' => '//m:oMathPara/m:oMath',
);

$docx->insertWordFragment($wordML, $referenceNode, 'before');

$docx->createDocx('output');

Although you can accomplish it using DOCXPath as this script illustrates, after you have purchased an Advanced or Premium license please send us an email to contact[at]phpdocx.com, and we'll generate a patch to be able to set alignment using a new option with addMathEquation.

Regards.