r>))</code>
</p>
<pre class="example">(%i1) [notequal (2*z, 2*z - 1), not equal (2*z, 2*z - 1)];
(%o1)            [notequal(2 z, 2 z - 1), true]
(%i2) is (notequal (2*z, 2*z - 1));
(%o2)                         true
</pre></dd></dl>

<p><a name="notequal"></a>
</p><dl>
<dt><u>Funktion:</u> <b>notequal</b><i> (<var>a</var>, <var>b</var>)</i>
<a name="IDX493"></a>
</dt>
<dd><p>Repr&auml;sentiert die Verneinung von <code>equal(<var>a</var>, <var>b</var>)</code>.
</p>
<p>Beispiele:
</p>
<pre class="example">(%i