171 lines
8.5 KiB
HTML
171 lines
8.5 KiB
HTML
<html>
|
||
<head>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
||
<title>sin_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 3.0.0">
|
||
<link rel="up" href="../powers.html" title="Basic Functions">
|
||
<link rel="prev" href="../powers.html" title="Basic Functions">
|
||
<link rel="next" href="cos_pi.html" title="cos_pi">
|
||
</head>
|
||
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
|
||
<table cellpadding="2" width="100%"><tr>
|
||
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td>
|
||
<td align="center"><a href="../../../../../../index.html">Home</a></td>
|
||
<td align="center"><a href="../../../../../../libs/libraries.htm">Libraries</a></td>
|
||
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
|
||
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
|
||
<td align="center"><a href="../../../../../../more/index.htm">More</a></td>
|
||
</tr></table>
|
||
<hr>
|
||
<div class="spirit-nav">
|
||
<a accesskey="p" href="../powers.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../powers.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="cos_pi.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
|
||
</div>
|
||
<div class="section">
|
||
<div class="titlepage"><div><div><h3 class="title">
|
||
<a name="math_toolkit.powers.sin_pi"></a><a class="link" href="sin_pi.html" title="sin_pi">sin_pi</a>
|
||
</h3></div></div></div>
|
||
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">math</span><span class="special">/</span><span class="identifier">special_functions</span><span class="special">/</span><span class="identifier">sin_pi</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
|
||
</pre>
|
||
<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">math</span><span class="special">{</span>
|
||
|
||
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">></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">sin_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"><</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">></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">sin_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">&);</span>
|
||
|
||
<span class="special">}}</span> <span class="comment">// namespaces</span>
|
||
</pre>
|
||
<p>
|
||
Returns the sine 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
|
||
type calculation rules</em></span></a>: the return is <code class="computeroutput"><span class="keyword">double</span></code>
|
||
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 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 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 sine of <span class="emphasis"><em>π⋅x</em></span>.
|
||
</p>
|
||
<div class="table">
|
||
<a name="math_toolkit.powers.sin_pi.table_sin_pi"></a><p class="title"><b>Table 8.79. Error rates for sin_pi</b></p>
|
||
<div class="table-contents"><table class="table" summary="Error rates for sin_pi">
|
||
<colgroup>
|
||
<col>
|
||
<col>
|
||
<col>
|
||
<col>
|
||
<col>
|
||
</colgroup>
|
||
<thead><tr>
|
||
<th>
|
||
</th>
|
||
<th>
|
||
<p>
|
||
GNU C++ version 7.1.0<br> linux<br> double
|
||
</p>
|
||
</th>
|
||
<th>
|
||
<p>
|
||
GNU C++ version 7.1.0<br> linux<br> long double
|
||
</p>
|
||
</th>
|
||
<th>
|
||
<p>
|
||
Sun compiler version 0x5150<br> Sun Solaris<br> long double
|
||
</p>
|
||
</th>
|
||
<th>
|
||
<p>
|
||
Microsoft Visual C++ version 14.1<br> Win32<br> double
|
||
</p>
|
||
</th>
|
||
</tr></thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>
|
||
<p>
|
||
sin_pi and cos_pi
|
||
</p>
|
||
</td>
|
||
<td>
|
||
<p>
|
||
<span class="blue">Max = 0ε (Mean = 0ε)</span>
|
||
</p>
|
||
</td>
|
||
<td>
|
||
<p>
|
||
<span class="blue">Max = 0.996ε (Mean = 0.335ε)</span>
|
||
</p>
|
||
</td>
|
||
<td>
|
||
<p>
|
||
<span class="blue">Max = 0.996ε (Mean = 0.336ε)</span>
|
||
</p>
|
||
</td>
|
||
<td>
|
||
<p>
|
||
<span class="blue">Max = 0.99ε (Mean = 0.328ε)</span>
|
||
</p>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>
|
||
<p>
|
||
sin_pi and cos_pi near integers and half integers
|
||
</p>
|
||
</td>
|
||
<td>
|
||
<p>
|
||
<span class="blue">Max = 0ε (Mean = 0ε)</span>
|
||
</p>
|
||
</td>
|
||
<td>
|
||
<p>
|
||
<span class="blue">Max = 0.976ε (Mean = 0.293ε)</span>
|
||
</p>
|
||
</td>
|
||
<td>
|
||
<p>
|
||
<span class="blue">Max = 0.976ε (Mean = 0.293ε)</span>
|
||
</p>
|
||
</td>
|
||
<td>
|
||
<p>
|
||
<span class="blue">Max = 0.996ε (Mean = 0.343ε)</span>
|
||
</p>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
<br class="table-break">
|
||
</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 © 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>
|
||
</div></td>
|
||
</tr></table>
|
||
<hr>
|
||
<div class="spirit-nav">
|
||
<a accesskey="p" href="../powers.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../powers.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="cos_pi.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
|
||
</div>
|
||
</body>
|
||
</html>
|