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quickrand

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Quick Random Number Generation: Provides a simple interface to call efficient random number generation functions based on the context. Proper random number seeding is enforced.

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<h1>Module quickrand_normal</h1>

<ul class="index"><li><a href="#description">Description</a></li><li><a href="#index">Function Index</a></li><li><a href="#functions">Function Details</a></li></ul>

   <h3><a name="Quick_Normal_Distribution_Random_Number_Generation">Quick Normal Distribution Random Number Generation</a></h3>.

<p>Copyright © 2017-2022 Michael Truog</p>



<p><b>Version:</b> 2.0.5 Oct 26 2023 11:37:41

  ------------------------------------------------------------------------</p>

<p><b>Authors:</b> Michael Truog (<a href="mailto:mjtruog at protonmail dot com"><tt>mjtruog at protonmail dot com</tt></a>).</p>



<h2><a name="description">Description</a></h2>

   <h3><a name="Quick_Normal_Distribution_Random_Number_Generation">Quick Normal Distribution Random Number Generation</a></h3>



<h2><a name="index">Function Index</a></h2>

<table width="100%" border="1" cellspacing="0" cellpadding="2" summary="function index"><tr><td valign="top"><a href="#box_muller-2">box_muller/2</a></td><td>

  <h4><a name="Box-Muller_transformation_for_generating_Gaussian_noise.">Box-Muller transformation for generating Gaussian noise.</a></h4>

  Has numerical stability problems when X1 is very close to zero.</td></tr>

</table>



<h2><a name="functions">Function Details</a></h2>



<h3 class="function"><a name="box_muller-2">box_muller/2</a></h3>

<div class="spec">

<p><tt>box_muller(Mean::number(), StdDev::number()) -&gt; {Result1::float(), Result2::float()}</tt><br></p>

<p> </p>

</div><p>

  <h4><a name="Box-Muller_transformation_for_generating_Gaussian_noise.">Box-Muller transformation for generating Gaussian noise.</a></h4>

  Has numerical stability problems when X1 is very close to zero.

  This is a serious problem for stochastic modeling that is generating

  millions of numbers.  If the result is used with added noise

  (e.g., creating a process sleep value) then it isn't a problem.</p>

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