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

Computes the p^r th root of an element of a global function field.

<p><p>

<h3>
Syntax:
</h3>
<pre>b := AlffEltPthRoot(a, r);</pre>

<p>

<table>
<tr>
<td>alff element</td>
<td><pre>  b  </pre></td>
<td></td>
</tr>
<tr>
<td>global function field</td>
<td><pre>  F  </pre></td>
<td></td>
</tr>
<tr>
<td>positive integer</td>
<td><pre>  r  </pre></td>
<td></td>
</tr>
</table>

<p>


See also:&nbsp;&nbsp;<a href="kashref.html#AlffDivisor">AlffDivisor</a>, <a href="kashref.html#AlffDivisorLDim">AlffDivisorLDim</a>

<p>

<h3>
Description:
</h3>
Let F/k be a global function field of characteristic p.
This function computes the unique p^rth root
b of an alff element
a in F, or returns false if it does not exist.

<p><p>

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

<pre>

</pre>

<p>


<hr>

<p>
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