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

Returns <tt> true</tt> if the ideal is given via a Z basis.

<p><p>

<h3>
Syntax:
</h3>
<pre>b := IdealBasisKnown(I);</pre>

<p>

<table>
<tr>
<td>Boolean </td>
<td><pre>  b  </pre></td>
<td></td>
</tr>
<tr>
<td>ideal </td>
<td><pre>  I  </pre></td>
<td></td>
</tr>
</table>

<p>


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

<p>

<h3>
Description:
</h3>
The basis representation is not computed, this is only a check.

<p><p>

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

<pre>

kash> o := Order(Poly(Zx, [1, 6, 6, 6]));;
kash> alpha := Elt(o, [0, 1, 0]);;
kash> I := Ideal(6, alpha);
<6, [0, 1, 0]>
kash> IdealBasisKnown(I);
false
kash> IdealBasis(I);
[ 1, [6 0 0]
    [0 1 0]
    [0 0 1] ]
kash> IdealBasisKnown(I);
> true

</pre>

<p>


<hr>

<p>
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