upstream-man-pages/manglsl/xhtml/tanh.xml

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   4 <?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><link rel="stylesheet" type="text/css" href="opengl-man.css" /><title>tanh - OpenGL Shading Language (GLSL)</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="tanh"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>tanh — return the hyperbolic tangent of the parameter</p></div><div class="refsynopsisdiv"><h2>Declaration</h2><div class="funcsynopsis"><p><code class="funcdef">genType <b class="fsfunc">tanh</b>(</code>genType <var class="pdparam">x</var><code>)</code>;</p></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>x</code></em></span></dt><dd><p>
   5                     Specify the value whose hyperbolic tangent to return.
   6                 </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
   7             <code class="function">tanh</code> returns the hyperbolic tangent of
   8             <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">x</mml:mi></mml:math>.
   9             The hyperbolic tangent of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"><mml:mi mathvariant="italic">x</mml:mi></mml:math>
  10             is computed as
  11             <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll">
  12               <mml:mrow>
  13                 <mml:mfrac>
  14                   <mml:mrow>
  15                     sinh(<mml:mi>x</mml:mi>)
  16                   </mml:mrow>
  17                   <mml:mrow>
  18                     cosh(<mml:mi>x</mml:mi>)
  19                   </mml:mrow>
  20                 </mml:mfrac>
  21               </mml:mrow>
  22             </mml:math>.
  23         </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="versions"></a><h2>Version Support</h2><div class="informaltable"><table border="1"><colgroup><col align="left" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /></colgroup><thead><tr><th align="left"><span class="bold"><strong>Function</strong></span></th><th align="left"><span class="bold"><strong>Version 1.10</strong></span></th><th align="left"><span class="bold"><strong>Version 1.20</strong></span></th><th align="left"><span class="bold"><strong>Version 1.30</strong></span></th><th align="left"><span class="bold"><strong>Version 1.40</strong></span></th><th align="left"><span class="bold"><strong>Version 1.50</strong></span></th><th align="left"><span class="bold"><strong>Version 3.30</strong></span></th><th align="left"><span class="bold"><strong>Version 4.00</strong></span></th><th align="left"><span class="bold"><strong>Version 4.10</strong></span></th><th align="left"><span class="bold"><strong>Version 4.20</strong></span></th><th align="center"><span class="bold"><strong>Version 4.30</strong></span></th></tr><tr><th align="left">tanh</th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>Y</em></span></th><th align="center"><span class="emphasis"><em>Y</em></span></th><th align="center"><span class="emphasis"><em>Y</em></span></th><th align="center"><span class="emphasis"><em>Y</em></span></th><th align="center"><span class="emphasis"><em>Y</em></span></th><th align="center"><span class="emphasis"><em>Y</em></span></th><th align="center"><span class="emphasis"><em>Y</em></span></th><th align="center"><span class="emphasis"><em>Y</em></span></th></tr></thead></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>
  24             <a href="sin.xml"><span class="citerefentry"><span class="refentrytitle">sin</span></span></a>,
  25             <a href="cos.xml"><span class="citerefentry"><span class="refentrytitle">cos</span></span></a>,
  26             <a href="sinh.xml"><span class="citerefentry"><span class="refentrytitle">sinh</span></span></a>,
  27             <a href="cosh.xml"><span class="citerefentry"><span class="refentrytitle">cosh</span></span></a>
  28         </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p>
  29             Copyright <span class="trademark"></span>© 2011 Khronos Group.
  30             This material may be distributed subject to the terms and conditions set forth in
  31             the Open Publication License, v 1.0, 8 June 1999.
  32             <a href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
  33         </p></div></div></body></html>