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

Returns true iff the argument is of type "KANT matrix".

<p><p>

<h3>
Syntax:
</h3>
<pre>b := IsMat(x);</pre>

<p>

<table>
<tr>
<td>boolean</td>
<td><pre>  b  </pre></td>
<td></td>
</tr>
<tr>
<td></td>
<td><pre>  x  </pre></td>
<td></td>
</tr>
</table>

<p>


<h3>
Description:
</h3>
<i>no detailed description available yet</i>

<p><p>

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

<pre>

kash> M := MatSym(Z, [[1,2,3,4], [5,6,7], [8,9], [10]] );
[ 1  2  3  4]
[ 2  5  6  7]
[ 3  6  8  9]
[ 4  7  9 10]
kash> IsMat(M);
true
kash> M := [ [1,2], [3,4] ];
[ [ 1, 2 ], [ 3, 4 ] ]
kash> IsMat(M);
true
kash> M;
[1 2]
[3 4]
kash> M[1];
[1 2]
kash> M[1][1];
1
kash> IsMat(false=IsMat(IsMat(IsMat(IsMat))));
> false

</pre>

<p>


<hr>

<p>
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