functions-reference/real-valued_basic_functions.html#hyperbolic-trigonometric-functions">view current version</a>.
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<div id="hyperbolic-trigonometric-functions" class="section level2" number="3.10">
<h2><span class="header-section-number">3.10</span> Hyperbolic Trigonometric Functions</h2>
<!-- R; cosh; (T x); -->
<p></p>
<p><code>R</code> <strong><code>cosh</code></strong><code>(T x)</code><br>
hyperbolic cosine of x (in radians)</p>
<!-- R; sinh; (T x); -->
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<p><code>R</code> <strong><code>si