An alias of <code>besselI(x, nu=1)</code>.

math

Circular Statistics, from "Topics in circular Statistics" (2001) S. Rao Jammalamadaka and A. SenGupta, World Scientific.

Eduardo Portugues

<dl><dt>x</dt>
<dd>non-negative numerical value at which to evaluate the Bessel function.</dd></dl>

<dl>

<dt>x</dt>
<dd>non-negative numerical value at which to evaluate the Bessel function.</dd>

</dl>