[back] [prev] [next] [index] [root]

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

Returns the denominator of an algebraic element.

<p><p>

<h3>
Syntax:
</h3>
<pre>d := EltDen(a);
d := EltDen(a, "rep");</pre>

<p>

<table>
<tr>
<td>integer</td>
<td><pre>  d  </pre></td>
<td></td>
</tr>
<tr>
<td>algebraic element</td>
<td><pre>  a  </pre></td>
<td></td>
</tr>
</table>

<p>


<h3>
Description:
</h3>
The denominator of the algebraic number a is the smallest
natural number d such that dcdot a is an algebraic
integer. If you use <tt> EltDen(a, "rep")</tt> the
denominator in the representation of a is returned.

<p><p>

<p>
<hr>
<p>
<h3>
Example:
</h3>
An absolute example. 
<pre>

kash> o := Order (x^3 - 23*x^2 + 146*x - 244);;
kash> a := Elt (o, [1/2,3/5,45/5657567]);
[28287835, 33945402, 450] / 56575670
kash> EltDen (a);
56575670
kash> EltDen (a, "rep");
> 56575670

</pre>

<p>


<hr>

<p>
<a href="../kashref.html"><- back</a>[back] [prev] [next] [index] [root]