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<h3 class="section">D.1 <code>bes</code></h3>

<p>An interface to the Bessel functions as defined in the GNU Scientific
Library (gsl) is available to virtual code applications by invoking a
function of the form

<pre class="example">     library('bes',f)
</pre>
   <p class="noindent">where f is a character string identifying the Bessel function family. 
All functions in this library return a floating point number encoded
as in <a href="math.html#math">math</a>.

<ul class="menu">
<li><a accesskey="1" href="Bessel-function-calling-conventions.html#Bessel-function-calling-conventions">Bessel function calling conventions</a>
<li><a accesskey="2" href="Bessel-function-errors.html#Bessel-function-errors">Bessel function errors</a>
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