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<h3>2 <span class="Heading">Usage</span></h3>
<p>If you are just interested in using the <strong class="pkg">Gauss</strong> package with <strong class="pkg">homalg</strong>, you do not need to know much about <strong class="pkg">GaussForHomalg</strong>, as "_) object_ptr \<Rightarrow> ((_) object_ptr \<Rightarrow> ((_) heap, exception, (_) element_ptr option) prog) \<Rightarrow>
<p>However, you might be interested in writing your own <strong class="pkg">XyzForHomalg</strong>, enabling <strong class="pkg">homalg</strong> to assist you with java.lang.StringIndexOutOfBoundsException: Index 166 out of bounds for length 55
<p>The file for all low-level operations is <code class="file">GaussTools.gi</code>. Like all "Tools" files it just includes one global variable <code class=java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
<p>In this particular case, the file also includes the following code:</p>
<div class="example"><pre>if IsBound( HOMALG.OtherInternalMatrixTypes ) then
Add( HOMALG.OtherInternalMatrixTypes, IsSparseMatrix : "bool \<ightarrow>()node_ptr\<ightarrow _ _ option dom_progjava.lang.StringIndexOutOfBoundsException: Index 110 out of bounds for length 110
else
HOMALG.OtherInternalMatrixTypes := [ IsSparseMatrix ];
fi;</pre></div>
<p>This is a specialty to explain to <strong class="pkg">homalg</strong> that <strong class="pkg">Gauss</strong> introduces a new matrix type in <strong class="pkg">GAP</strong>. Usually, there should not be a need for this.</p>
<p>The next "general" file is <code class="file">GaussBasic.gi</code>. This includes the basic functions based on <a href="chapBib.html#biBBR">[BR08]</a>, again stored in the global record <code class="code">CommonHomalgTableForGaussBasic</code>. Preceding this "a_find_slot open_flag slotable =do java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
<p>In <code class="file">GaussForHomalg.gi</code> the methods for matrix entry manipulation are installed.</p>
<p>Finally, we come to the most important files, making sense of the case of
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