Sophie: gap-system-4.4.12-5mdv2010.0 i586

gap-system-4.4.12-5mdv2010.0.i586.rpm

<html><head><title>[Radiroot] 3 The Info Class of the Package</title></head>
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<h1>3 The Info Class of the Package</h1><p>
<p>
The <code>info</code> mechanism in <font face="Gill Sans,Helvetica,Arial">GAP</font> allows functions to print information
during the computation (see Section &nbsp;<a href="badlink:ref:Info Functions">Info Functions</a> in the
<font face="Gill Sans,Helvetica,Arial">GAP</font> reference manual for general information).
<p>
<a name = ""></a>
<li><code>InfoRadiroot</code>
<p>
is the info class of this package.
<p>
<a name = ""></a>
<li><code>SetInfoLevel( InfoRadiroot, </code><var>level</var><code> )</code>
<p>
sets the info level for <code>InfoRadiroot</code> to <var>level</var>, where <var>level</var> has
to be an integer in the range 0-4.
<p>
The default value for <code>InfoRadiroot</code> is 1. Information why a function
returns <code>fail</code> will be given with this setting.
<pre>
gap&gt; InfoLevel(InfoRadiroot);
1
gap&gt; RootsOfPolynomialAsRadicals(x^5-4*x+2);
#I  Polynomial is not solvable.
fail
</pre>
<p>
Setting the info level to a higher value will cause messages to show up during
single steps of the computation. On level 2 one gets a rough
overview. Those who want to go into the details of the algorithm
described in <a href="biblio.htm#Distler05"><cite>Distler05</cite></a> and of the implementation itself will
find the information on level 3-4 helpful.
<p>
To use the package in silent mode the info level can be given the
value 0.
<p>
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<P>
<address>Radiroot manual<br>January 2008
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