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<p>im actually interested in comparing two OpenMath-Objects with each other in terms of equality (despite being build a bit differently in XML) by using Java.</p>
<p>For example I want "x^2+2x-35=0" to be equal to "-35+2x+x^2=0".</p>
<p>So im wondering if there is a way to achieve this. I at least understand OpenMath as some sort of tree structure and thought there might be a way to compare them.</p>
<p>I already tried writing the expressions for those two equations, but ended up with no luck or good idea.</p>
<pre><strong><code>Equation 1: x^2+2x-35=0</code></strong><em><code>
<OMOBJ xmlns='http://www.openmath.org/OpenMath' version='2.0' cdbase='http://www.openmath.org/cd'>
<OMA>
<OMS cd='relation1' name='eq'/>
<OMA>
<OMS cd='arith1' name='minus'/>
<OMA>
<OMS cd='arith1' name='plus'/>
<OMA>
<OMS cd='arith1' name='power'/>
<OMV name='x'/>
<OMI>
2
</OMI>
</OMA>
<OMA style='invisible'>
<OMS cd='arith1' name='times'/>
<OMI>
2
</OMI>
<OMV name='x'/>
</OMA>
</OMA>
<OMI>
35
</OMI>
</OMA>
<OMI>
0
</OMI>
</OMA>
</OMOBJ>
</code></em><strong><code>Equation 2: -35+2x+x^2</code></strong><em><code>
<OMOBJ xmlns='http://www.openmath.org/OpenMath' version='2.0' cdbase='http://www.openmath.org/cd'>
<OMA>
<OMS cd='relation1' name='eq'/>
<OMA>
<OMS cd='arith1' name='plus'/>
<OMA>
<OMS cd='arith1' name='unary_minus'/>
<OMI>
35
</OMI>
</OMA>
<OMA style='invisible'>
<OMS cd='arith1' name='times'/>
<OMI>
2
</OMI>
<OMV name='x'/>
</OMA>
<OMA>
<OMS cd='arith1' name='power'/>
<OMV name='x'/>
<OMI>
2
</OMI>
</OMA>
</OMA>
<OMI>
0
</OMI>
</OMA>
</OMOBJ></code></em></pre>
<p>Thank you for your time</p>
<p>Sincerely</p>
<p>Phu</p>
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