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+<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 36. Numerics</title><meta name="generator" content="DocBook XSL Stylesheets V1.74.0" /><meta name="keywords" content=" ISO C++ , library " /><link rel="home" href="../spine.html" title="The GNU C++ Library Documentation" /><link rel="up" href="extensions.html" title="Part XII. Extensions" /><link rel="prev" href="ext_algorithms.html" title="Chapter 35. Algorithms" /><link rel="next" href="ext_iterators.html" title="Chapter 37. Iterators" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 36. Numerics</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_algorithms.html">Prev</a> </td><th width="60%" align="center">Part XII.
+ Extensions
+
+</th><td width="20%" align="right"> <a accesskey="n" href="ext_iterators.html">Next</a></td></tr></table><hr /></div><div class="chapter" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.numerics"></a>Chapter 36. Numerics</h2></div></div></div><p>26.4, the generalized numeric operations such as accumulate, are extended
+ with the following functions:
+</p><pre class="programlisting">
+ power (x, n);
+ power (x, n, moniod_operation);</pre><p>Returns, in FORTRAN syntax, "x ** n" where n>=0. In the
+ case of n == 0, returns the <a class="ulink" href="#ch20" target="_top">identity element</a> for the
+ monoid operation. The two-argument signature uses multiplication (for
+ a true "power" implementation), but addition is supported as well.
+ The operation functor must be associative.
+</p><p>The <code class="code">iota</code> function wins the award for Extension With the
+ Coolest Name. It "assigns sequentially increasing values to a range.
+ That is, it assigns value to *first, value + 1 to *(first + 1) and so
+ on." Quoted from SGI documentation.
+</p><pre class="programlisting">
+ void iota(_ForwardIter first, _ForwardIter last, _Tp value);</pre></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ext_algorithms.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="extensions.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ext_iterators.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 35. Algorithms </td><td width="20%" align="center"><a accesskey="h" href="../spine.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 37. Iterators</td></tr></table></div></body></html>
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