ss="w"> </span><span class="p">(</span><span class="n">n</span><span class="p">.</span><span class="n">eq</span><span class="p">.</span><span class="mi">0</span><span class="p">)</span><span class="w"> </span><span class="k">return</span><span class="w"></span>
<span class="c">!</span>
<span class="w">      </span><span class="n">nounit</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">lsame</span><span class="p">(</span><span class="n">diag</span><span class="p">