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  <div class="navpath"><a class="el" href="a00124.html">glm</a>::<a class="el" href="a00150.html">gtx</a>::<a class="el" href="a00167.html">fast_square_root</a>
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<h1>glm::gtx::fast_square_root Namespace Reference</h1>
<p>GLM_GTX_fast_square_root extension: Fast but less accurate implementations of square root based functions.  
<a href="#_details">More...</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Functions</h2></td></tr>
<tr><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">genType::value_type&nbsp;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00167.html#a68162c92de0e592216be943345169da7">fastDistance</a> (genType const &amp;x, genType const &amp;y)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Faster than the common distance function but less accurate.  <a href="#a68162c92de0e592216be943345169da7"></a><br/></td></tr>
<tr><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">genType&nbsp;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00167.html#a1858a37f06c79e17f287bbaa8f75b08e">fastInverseSqrt</a> (genType const &amp;x)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Faster than the common inversesqrt function but less accurate.  <a href="#a1858a37f06c79e17f287bbaa8f75b08e"></a><br/></td></tr>
<tr><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">genType::value_type&nbsp;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00167.html#ada4490e940c0c4e08beab6db793f8934">fastLength</a> (genType const &amp;x)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Faster than the common length function but less accurate.  <a href="#ada4490e940c0c4e08beab6db793f8934"></a><br/></td></tr>
<tr><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">genType&nbsp;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00167.html#a7e785d24d7bbac63f273baf9af1160da">fastNormalize</a> (genType const &amp;x)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Faster than the common normalize function but less accurate.  <a href="#a7e785d24d7bbac63f273baf9af1160da"></a><br/></td></tr>
<tr><td class="memTemplParams" colspan="2">template&lt;typename genType &gt; </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">genType&nbsp;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00167.html#aced2a1b7a161290e4d401967607d56db">fastSqrt</a> (genType const &amp;x)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Faster than the common sqrt function but less accurate.  <a href="#aced2a1b7a161290e4d401967607d56db"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>GLM_GTX_fast_square_root extension: Fast but less accurate implementations of square root based functions. </p>
<hr/><h2>Function Documentation</h2>
<a class="anchor" id="a68162c92de0e592216be943345169da7"></a><!-- doxytag: member="glm::gtx::fast_square_root::fastDistance" ref="a68162c92de0e592216be943345169da7" args="(genType const &amp;x, genType const &amp;y)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">genType::value_type glm::gtx::fast_square_root::fastDistance </td>
          <td>(</td>
          <td class="paramtype">genType const &amp;&nbsp;</td>
          <td class="paramname"> <em>x</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">genType const &amp;&nbsp;</td>
          <td class="paramname"> <em>y</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>Faster than the common distance function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>

</div>
</div>
<a class="anchor" id="a1858a37f06c79e17f287bbaa8f75b08e"></a><!-- doxytag: member="glm::gtx::fast_square_root::fastInverseSqrt" ref="a1858a37f06c79e17f287bbaa8f75b08e" args="(genType const &amp;x)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">genType glm::gtx::fast_square_root::fastInverseSqrt </td>
          <td>(</td>
          <td class="paramtype">genType const &amp;&nbsp;</td>
          <td class="paramname"> <em>x</em></td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>Faster than the common inversesqrt function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>

</div>
</div>
<a class="anchor" id="ada4490e940c0c4e08beab6db793f8934"></a><!-- doxytag: member="glm::gtx::fast_square_root::fastLength" ref="ada4490e940c0c4e08beab6db793f8934" args="(genType const &amp;x)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">genType::value_type glm::gtx::fast_square_root::fastLength </td>
          <td>(</td>
          <td class="paramtype">genType const &amp;&nbsp;</td>
          <td class="paramname"> <em>x</em></td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>Faster than the common length function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>

</div>
</div>
<a class="anchor" id="a7e785d24d7bbac63f273baf9af1160da"></a><!-- doxytag: member="glm::gtx::fast_square_root::fastNormalize" ref="a7e785d24d7bbac63f273baf9af1160da" args="(genType const &amp;x)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">genType glm::gtx::fast_square_root::fastNormalize </td>
          <td>(</td>
          <td class="paramtype">genType const &amp;&nbsp;</td>
          <td class="paramname"> <em>x</em></td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>Faster than the common normalize function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>

</div>
</div>
<a class="anchor" id="aced2a1b7a161290e4d401967607d56db"></a><!-- doxytag: member="glm::gtx::fast_square_root::fastSqrt" ref="aced2a1b7a161290e4d401967607d56db" args="(genType const &amp;x)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">genType glm::gtx::fast_square_root::fastSqrt </td>
          <td>(</td>
          <td class="paramtype">genType const &amp;&nbsp;</td>
          <td class="paramname"> <em>x</em></td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>Faster than the common sqrt function but less accurate. </p>
<p>From GLM_GTX_fast_square_root extension. </p>

</div>
</div>
</div>
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