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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Constants</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="index.html" title="Genius Manual"><link rel="up" href="ch11.html" title="Chapter 11. List of GEL functions"><link rel="prev" href="ch11s03.html" title="Parameters"><link rel="next" href="ch11s05.html" title="Numeric"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Constants</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch11s03.html">Prev</a> </td><th width="60%" align="center">Chapter 11. List of GEL functions</th><td width="20%" align="right"> <a accesskey="n" href="ch11s05.html">Next</a></td></tr></table><hr></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="genius-gel-function-list-constants"></a>Constants</h2></div></div></div><div class="variablelist"><dl class="variablelist"><dt><span class="term"><a name="gel-function-CatalanConstant"></a>CatalanConstant</span></dt><dd><pre class="synopsis">CatalanConstant</pre><p>
Catalan's Constant, approximately 0.915... It is defined to be the series where terms are <strong class="userinput"><code>(-1^k)/((2*k+1)^2)</code></strong>, where <code class="varname">k</code> ranges from 0 to infinity.
</p><p>
See
<a class="ulink" href="https://en.wikipedia.org/wiki/Catalan%27s_constant" target="_top">Wikipedia</a> or
<a class="ulink" href="http://mathworld.wolfram.com/CatalansConstant.html" target="_top">Mathworld</a> for more information.
</p></dd><dt><span class="term"><a name="gel-function-EulerConstant"></a>EulerConstant</span></dt><dd><pre class="synopsis">EulerConstant</pre><p>Aliases: <code class="function">gamma</code></p><p>
Euler's constant gamma. Sometimes called the
Euler-Mascheroni constant.
</p><p>
See
<a class="ulink" href="https://en.wikipedia.org/wiki/Euler-Mascheroni_constant" target="_top">Wikipedia</a> or
<a class="ulink" href="http://planetmath.org/MascheroniConstant" target="_top">Planetmath</a> or
<a class="ulink" href="http://mathworld.wolfram.com/Euler-MascheroniConstant.html" target="_top">Mathworld</a> for more information.
</p></dd><dt><span class="term"><a name="gel-function-GoldenRatio"></a>GoldenRatio</span></dt><dd><pre class="synopsis">GoldenRatio</pre><p>The Golden Ratio.</p><p>
See
<a class="ulink" href="https://en.wikipedia.org/wiki/Golden_ratio" target="_top">Wikipedia</a> or
<a class="ulink" href="http://planetmath.org/GoldenRatio" target="_top">Planetmath</a> or
<a class="ulink" href="http://mathworld.wolfram.com/GoldenRatio.html" target="_top">Mathworld</a> for more information.
</p></dd><dt><span class="term"><a name="gel-function-Gravity"></a>Gravity</span></dt><dd><pre class="synopsis">Gravity</pre><p>Free fall acceleration at sea level in meters per second squared. This is the standard gravity constant 9.80665. The gravity
in your particular neck of the woods might be different due to different altitude and the fact that the earth is not perfectly
round and uniform.</p><p>
See
<a class="ulink" href="https://en.wikipedia.org/wiki/Standard_gravity" target="_top">Wikipedia</a> for more information.
</p></dd><dt><span class="term"><a name="gel-function-e"></a>e</span></dt><dd><pre class="synopsis">e</pre><p>
The base of the natural logarithm. <strong class="userinput"><code>e^x</code></strong>
is the exponential function
<a class="link" href="ch11s05.html#gel-function-exp"><code class="function">exp</code></a>. It is approximately
2.71828182846... This number is sometimes called Euler's number, although there are
several numbers that are also called Euler's. An example is the gamma constant: <a class="link" href="ch11s04.html#gel-function-EulerConstant"><code class="function">EulerConstant</code></a>.
</p><p>
See
<a class="ulink" href="https://en.wikipedia.org/wiki/E_(mathematical_constant)" target="_top">Wikipedia</a> or
<a class="ulink" href="http://planetmath.org/E" target="_top">Planetmath</a> or
<a class="ulink" href="http://mathworld.wolfram.com/e.html" target="_top">Mathworld</a> for more information.
</p></dd><dt><span class="term"><a name="gel-function-pi"></a>pi</span></dt><dd><pre class="synopsis">pi</pre><p>
The number pi, that is the ratio of a circle's circumference
to its diameter. This is approximately 3.14159265359...
</p><p>
See
<a class="ulink" href="https://en.wikipedia.org/wiki/Pi" target="_top">Wikipedia</a> or
<a class="ulink" href="http://planetmath.org/Pi" target="_top">Planetmath</a> or
<a class="ulink" href="http://mathworld.wolfram.com/Pi.html" target="_top">Mathworld</a> for more information.
</p></dd></dl></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch11s03.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch11.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch11s05.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Parameters </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Numeric</td></tr></table></div></body></html>
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