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    <title>OpenLibm</title>

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        <h1 class="header">OpenLibm</h1>
        <p class="header">A high quality system independent, portable, open source libm implementation</p>

        <ul>
          <li class="download"><a class="buttons" href="https://github.com/JuliaLang/openlibm/archive/v0.4.1.zip">Download ZIP</a></li>
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        <p class="header">This project is maintained by <a class="header name" href="https://github.com/JuliaLang">JuliaLang</a></p>


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      <section>
        <h2>
<a id="openlibm" class="anchor" href="#openlibm" aria-hidden="true"><span class="octicon octicon-link"></span></a>OpenLibm</h2>

<p><a href="http://www.openlibm.org">OpenLibm</a> is an effort to have a high quality, portable, standalone
C mathematical library (<a href="http://en.wikipedia.org/wiki/libm"><code>libm</code></a>).
It can be used standalone in applications and programming language
implementations.</p>

<p>The project was born out of a need to have a good <code>libm</code> for the
<a href="http://www.julialang.org">Julia programming langage</a> that worked
consistently across compilers and operating systems, and in 32-bit and
64-bit environments.</p>

<h3>
<a id="history" class="anchor" href="#history" aria-hidden="true"><span class="octicon octicon-link"></span></a>History</h3>

<p>The OpenLibm code derives from the <a href="http://svnweb.freebsd.org/base/head/lib/msun/">FreeBSD
msun</a> and <a href="http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libm/src/">OpenBSD
libm</a>
implementations, which in turn derive from <a href="http://www.netlib.org/fdlibm/">FDLIBM
5.3</a>. Over and above that, OpenLibm itself has received a number of patches to make it platform independent and portable.</p>

<h3>
<a id="platform-support" class="anchor" href="#platform-support" aria-hidden="true"><span class="octicon octicon-link"></span></a>Platform support</h3>

<p>OpenLibm builds on Linux, Mac OS X, Windows, FreeBSD, and
  OpenBSD. It builds with both GCC and clang. Although largely
  tested and widely used on x86 architectures, openlibm also
  supports ARM and powerPC.

<h3>
<a id="other-relevant-projects" class="anchor" href="#other-relevant-projects" aria-hidden="true"><span class="octicon octicon-link"></span></a>Other relevant projects</h3>

<ol>
  <li> <a href="http://www.netlib.org/fdlibm/">FDLIBM</a>: Freely Distributable Math Library</li>
  <li> <a href="http://lipforge.ens-lyon.fr/www/crlibm/">CRlibm</a>: Correctly Rounded mathematical library</li>
  <li> <a href="http://www.yeppp.info/">Yeppp!</a>: A high-performance SIMD-optimized mathematical library</li>
  <li> <a href="https://software.intel.com/sites/products/documentation/doclib/mkl_sa/112/vml/vmldata.htm">Intel VML</a>: Intel's Vector Math Library</li>
</ol>

<h3>
<a id="Acknowledgements" class="anchor" href="#Acknowledgements" aria-hidden="true"><span class="octicon octicon-link"></span></a>Acknowledgements</h3>

<p>PowerPC support for OpenLibm was graciously sponsored by IBM.


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