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<title>GNU Scientific Library &ndash; Reference Manual: Zeros of Regular Bessel Functions</title>

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<a name="Zeros-of-Regular-Bessel-Functions"></a>
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<p>
Previous: <a href="Irregular-Modified-Bessel-Functions-_002d-Fractional-Order.html#Irregular-Modified-Bessel-Functions-_002d-Fractional-Order" accesskey="p" rel="previous">Irregular Modified Bessel Functions - Fractional Order</a>, Up: <a href="Bessel-Functions.html#Bessel-Functions" accesskey="u" rel="up">Bessel Functions</a> &nbsp; [<a href="Function-Index.html#Function-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
<a name="Zeros-of-Regular-Bessel-Functions-1"></a>
<h4 class="subsection">7.5.13 Zeros of Regular Bessel Functions</h4>
<a name="index-Zeros-of-Regular-Bessel-Functions"></a>
<a name="index-Regular-Bessel-Functions_002c-Zeros-of"></a>

<dl>
<dt><a name="index-gsl_005fsf_005fbessel_005fzero_005fJ0"></a>Function: <em>double</em> <strong>gsl_sf_bessel_zero_J0</strong> <em>(unsigned int <var>s</var>)</em></dt>
<dt><a name="index-gsl_005fsf_005fbessel_005fzero_005fJ0_005fe"></a>Function: <em>int</em> <strong>gsl_sf_bessel_zero_J0_e</strong> <em>(unsigned int <var>s</var>, gsl_sf_result * <var>result</var>)</em></dt>
<dd><p>These routines compute the location of the <var>s</var>-th positive zero of
the Bessel function <em>J_0(x)</em>.
</p></dd></dl>

<dl>
<dt><a name="index-gsl_005fsf_005fbessel_005fzero_005fJ1"></a>Function: <em>double</em> <strong>gsl_sf_bessel_zero_J1</strong> <em>(unsigned int <var>s</var>)</em></dt>
<dt><a name="index-gsl_005fsf_005fbessel_005fzero_005fJ1_005fe"></a>Function: <em>int</em> <strong>gsl_sf_bessel_zero_J1_e</strong> <em>(unsigned int <var>s</var>, gsl_sf_result * <var>result</var>)</em></dt>
<dd><p>These routines compute the location of the <var>s</var>-th positive zero of
the Bessel function <em>J_1(x)</em>.
</p></dd></dl>

<dl>
<dt><a name="index-gsl_005fsf_005fbessel_005fzero_005fJnu"></a>Function: <em>double</em> <strong>gsl_sf_bessel_zero_Jnu</strong> <em>(double <var>nu</var>, unsigned int <var>s</var>)</em></dt>
<dt><a name="index-gsl_005fsf_005fbessel_005fzero_005fJnu_005fe"></a>Function: <em>int</em> <strong>gsl_sf_bessel_zero_Jnu_e</strong> <em>(double <var>nu</var>, unsigned int <var>s</var>, gsl_sf_result * <var>result</var>)</em></dt>
<dd><p>These routines compute the location of the <var>s</var>-th positive zero of
the Bessel function <em>J_\nu(x)</em>.  The current implementation does not
support negative values of <var>nu</var>. 
</p></dd></dl>





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