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Edouard DUPIN
2021-10-05 21:37:46 +02:00
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libs/math/doc/html/math_toolkit/powers/cos_pi.html
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@@ -1,10 +1,10 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>cos_pi</title>
<link rel="stylesheet" href="../../math.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="../../index.html" title="Math Toolkit 2.6.0">
<link rel="home" href="../../index.html" title="Math Toolkit 3.0.0">
<link rel="up" href="../powers.html" title="Basic Functions">
<link rel="prev" href="sin_pi.html" title="sin_pi">
<link rel="next" href="log1p.html" title="log1p">
@@ -33,13 +33,13 @@
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
<a class="link" href="../result_type.html" title="Calculation of the Type of the Result"><span class="emphasis"><em>calculated-result-type</em></span></a> <span class="identifier">cos_pi</span><span class="special">(</span><span class="identifier">T</span> <span class="identifier">x</span><span class="special">);</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <a class="link" href="../../policy.html" title="Chapter&#160;18.&#160;Policies: Controlling Precision, Error Handling etc">Policy</a><span class="special">&gt;</span>
<a class="link" href="../result_type.html" title="Calculation of the Type of the Result"><span class="emphasis"><em>calculated-result-type</em></span></a> <span class="identifier">cos_pi</span><span class="special">(</span><span class="identifier">T</span> <span class="identifier">x</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="../../policy.html" title="Chapter&#160;18.&#160;Policies: Controlling Precision, Error Handling etc">Policy</a><span class="special">&amp;);</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <a class="link" href="../../policy.html" title="Chapter 21. Policies: Controlling Precision, Error Handling etc">Policy</a><span class="special">&gt;</span>
<a class="link" href="../result_type.html" title="Calculation of the Type of the Result"><span class="emphasis"><em>calculated-result-type</em></span></a> <span class="identifier">cos_pi</span><span class="special">(</span><span class="identifier">T</span> <span class="identifier">x</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="../../policy.html" title="Chapter 21. Policies: Controlling Precision, Error Handling etc">Policy</a><span class="special">&amp;);</span>
<span class="special">}}</span> <span class="comment">// namespaces</span>
</pre>
<p>
Returns the cosine of <span class="emphasis"><em>&#960;x</em></span>.
Returns the cosine of <span class="emphasis"><em>π  x</em></span>.
</p>
<p>
The return type of this function is computed using the <a class="link" href="../result_type.html" title="Calculation of the Type of the Result"><span class="emphasis"><em>result
@@ -47,17 +47,17 @@
when <span class="emphasis"><em>x</em></span> is an integer type and T otherwise.
</p>
<p>
The final <a class="link" href="../../policy.html" title="Chapter&#160;18.&#160;Policies: Controlling Precision, Error Handling etc">Policy</a> argument is optional and can
The final <a class="link" href="../../policy.html" title="Chapter 21. Policies: Controlling Precision, Error Handling etc">Policy</a> argument is optional and can
be used to control the behaviour of the function: how it handles errors,
what level of precision to use etc. Refer to the <a class="link" href="../../policy.html" title="Chapter&#160;18.&#160;Policies: Controlling Precision, Error Handling etc">policy
what level of precision to use etc. Refer to the <a class="link" href="../../policy.html" title="Chapter 21. Policies: Controlling Precision, Error Handling etc">policy
documentation for more details</a>.
</p>
<p>
This function performs exact all-integer arithmetic argument reduction before
computing the cosine of <span class="emphasis"><em>&#960;x</em></span>.
computing the cosine of <span class="emphasis"><em>π·x</em></span>.
</p>
<div class="table">
<a name="math_toolkit.powers.cos_pi.table_cos_pi"></a><p class="title"><b>Table&#160;6.77.&#160;Error rates for cos_pi</b></p>
<a name="math_toolkit.powers.cos_pi.table_cos_pi"></a><p class="title"><b>Table 8.80. Error rates for cos_pi</b></p>
<div class="table-contents"><table class="table" summary="Error rates for cos_pi">
<colgroup>
<col>
@@ -71,22 +71,22 @@
</th>
<th>
<p>
Microsoft Visual C++ version 12.0<br> Win32<br> double
GNU C++ version 7.1.0<br> linux<br> double
</p>
</th>
<th>
<p>
GNU C++ version 5.1.0<br> linux<br> double
GNU C++ version 7.1.0<br> linux<br> long double
</p>
</th>
<th>
<p>
GNU C++ version 5.1.0<br> linux<br> long double
Sun compiler version 0x5150<br> Sun Solaris<br> long double
</p>
</th>
<th>
<p>
Sun compiler version 0x5130<br> Sun Solaris<br> long double
Microsoft Visual C++ version 14.1<br> Win32<br> double
</p>
</th>
</tr></thead>
@@ -99,22 +99,22 @@
</td>
<td>
<p>
<span class="blue">Max = 0.996&#949; (Mean = 0.281&#949;)</span>
<span class="blue">Max = 0ε (Mean = 0ε)</span>
</p>
</td>
<td>
<p>
<span class="blue">Max = 0&#949; (Mean = 0&#949;)</span>
<span class="blue">Max = 0.991ε (Mean = 0.302ε)</span>
</p>
</td>
<td>
<p>
<span class="blue">Max = 0.991&#949; (Mean = 0.302&#949;)</span>
<span class="blue">Max = 0.991ε (Mean = 0.302ε)</span>
</p>
</td>
<td>
<p>
<span class="blue">Max = 0.991&#949; (Mean = 0.302&#949;)</span>
<span class="blue">Max = 0.996ε (Mean = 0.284ε)</span>
</p>
</td>
</tr>
@@ -126,22 +126,22 @@
</td>
<td>
<p>
<span class="blue">Max = 0.996&#949; (Mean = 0.298&#949;)</span>
<span class="blue">Max = 0ε (Mean = 0ε)</span>
</p>
</td>
<td>
<p>
<span class="blue">Max = 0&#949; (Mean = 0&#949;)</span>
<span class="blue">Max = 0.976ε (Mean = 0.28ε)</span>
</p>
</td>
<td>
<p>
<span class="blue">Max = 0.976&#949; (Mean = 0.28&#949;)</span>
<span class="blue">Max = 0.976ε (Mean = 0.28ε)</span>
</p>
</td>
<td>
<p>
<span class="blue">Max = 0.976&#949; (Mean = 0.28&#949;)</span>
<span class="blue">Max = 0.996ε (Mean = 0.298ε)</span>
</p>
</td>
</tr>
@@ -152,11 +152,11 @@
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 2006-2010, 2012-2014, 2017 Nikhar
Agrawal, Anton Bikineev, Paul A. Bristow, Marco Guazzone, Christopher Kormanyos,
Hubert Holin, Bruno Lalande, John Maddock, Jeremy Murphy, Johan R&#229;de, Gautam
Sewani, Benjamin Sobotta, Nicholas Thompson, Thijs van den Berg, Daryle Walker
and Xiaogang Zhang<p>
<td align="right"><div class="copyright-footer">Copyright © 2006-2021 Nikhar Agrawal, Anton Bikineev, Matthew Borland,
Paul A. Bristow, Marco Guazzone, Christopher Kormanyos, Hubert Holin, Bruno
Lalande, John Maddock, Evan Miller, Jeremy Murphy, Matthew Pulver, Johan Råde,
Gautam Sewani, Benjamin Sobotta, Nicholas Thompson, Thijs van den Berg, Daryle
Walker and Xiaogang Zhang<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>