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<title>Procyon AVRlib: Fixed-Point Math Function Library (fixedpt.c)</title>
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<h1>Fixed-Point Math Function Library (fixedpt.c)<br>
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[<a class="el" href="group__general.html">General Libraries</a>]</small>
</h1><div class="fragment"><pre class="fragment"><span class="preprocessor"> #include "<a class="code" href="fixedpt_8h.html">fixedpt.h</a>"</span>
</pre></div> <dl compact><dt><b>Overview</b></dt><dd>This library provides basic fixed-point math operations implemented in C. Fixed-point math is a system by which integer variables can represent fractional values with a fixed precision "behind" the decimal point (like a fixed number of decimal places). Fixed-point math is typically 10x faster to execute than floating-point math, and should be used when a limited amount of fractional precision is sufficient (such as 4ths, or 10ths, or 128ths, etc).</dd></dl>
<dl compact><dt><b>Note:</b></dt><dd>This library is really meant more as a demonstration of fixed-pt math. For best code-efficiency and speed, you are enouraged to take the code you see in these functions and copy it into your own code. </dd></dl>
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