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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/JuliaMath/openlibm/releases">Download</a></li>
<li><a class="buttons github" href="https://github.com/JuliaMath/openlibm">View On GitHub</a></li>
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<p class="header">This project is maintained by <a class="header name" href="https://julialang.org/">the Julia Project</a></p>
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<h2>
<a id="openlibm" class="anchor" href="#openlibm" aria-hidden="true"><span class="octicon octicon-link"></span></a>OpenLibm</h2>
<p><a href="http://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, macOS, Windows, FreeBSD, OpenBSD, NetBSD, and
DragonFly BSD. It builds with both GCC and clang. OpenLibm supports x86, amd64,
arm, aarch64, riscv64, ppc64le, mips, wasm32, s390(x), and loongarch64.
<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="https://git.musl-libc.org/cgit/musl/tree/src/math">MUSL</a> The libm library in the musl-libc project</li>
<li> <a href="http://www.netlib.org/fdlibm/">FDLIBM</a>: Freely Distributable Math Library</li>
<li> <a href="https://github.com/freebsd/freebsd/tree/master/lib/msun">FreeBSD msun</a>: FreeBSD's math library</li>
<li> <a href="https://github.com/JuliaIntervals/CRlibm.jl">CRlibm</a>: Correctly Rounded mathematical library</li>
<li> <a href="https://git.musl-libc.org/cgit/musl/tree/src/math">MUSL</a></li>
<li> <a href="https://core-math.gitlabpages.inria.fr/">CORE-MATH</a> Project</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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