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<p>&nbsp;<p>
<hr noshade size="5">
<h2><a name="QfRank"></a>
QfRank
</h2>

missing shortdoc

<p><p>

<h3>
Syntax:
</h3>
<pre>n := QfRank(S);</pre>

<p>

<table>
<tr>
<td>integer</td>
<td><pre>  n  </pre></td>
<td></td>
</tr>
<tr>
<td>polynomial algebra or quotient field</td>
<td><pre>  S  </pre></td>
<td></td>
</tr>
</table>

<p>


<h3>
Description:
</h3>
Given a polynomial algebra or its quotient field this
function returns the number of variables.

<p><p>

<p>
<hr>
<p>
<h3>
Example:
</h3>

<pre>

kash> Zxy := PolyAlg(Zx);
Univariate Polynomial Ring in y over Univariate Polynomial Ring in x over Inte\
ger Ring

kash> QfRank(Zxy);
> 2

</pre>

<p>


<hr>

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