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<a accesskey="1" href="page.php?w=canonical_form&amp;p=4">1.Previous</a><br />
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<p>arbitrary choices (like ordering the variables), which introduce difficulties for testing the equality of two objects resulting in independent computations. Therefore, in computer algebra, normal form is a weaker notion: A normal form is a representation such that zero is uniquely represented. This allows testing for equality by putting the difference of two objects in normal form.</p>

<p>Canonical form can also mean a <a href="page.php?w=differential_form">differential form</a> that is defined in a natural (canonical) way.</p>

<p><big>Definition</big></p><p>
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