| <html lang="en"> |
| <head> |
| <title>sinh - Untitled</title> |
| <meta http-equiv="Content-Type" content="text/html"> |
| <meta name="description" content="Untitled"> |
| <meta name="generator" content="makeinfo 4.13"> |
| <link title="Top" rel="start" href="index.html#Top"> |
| <link rel="up" href="Math.html#Math" title="Math"> |
| <link rel="prev" href="sin.html#sin" title="sin"> |
| <link rel="next" href="sqrt.html#sqrt" title="sqrt"> |
| <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> |
| <meta http-equiv="Content-Style-Type" content="text/css"> |
| <style type="text/css"><!-- |
| pre.display { font-family:inherit } |
| pre.format { font-family:inherit } |
| pre.smalldisplay { font-family:inherit; font-size:smaller } |
| pre.smallformat { font-family:inherit; font-size:smaller } |
| pre.smallexample { font-size:smaller } |
| pre.smalllisp { font-size:smaller } |
| span.sc { font-variant:small-caps } |
| span.roman { font-family:serif; font-weight:normal; } |
| span.sansserif { font-family:sans-serif; font-weight:normal; } |
| --></style> |
| </head> |
| <body> |
| <div class="node"> |
| <a name="sinh"></a> |
| <p> |
| Next: <a rel="next" accesskey="n" href="sqrt.html#sqrt">sqrt</a>, |
| Previous: <a rel="previous" accesskey="p" href="sin.html#sin">sin</a>, |
| Up: <a rel="up" accesskey="u" href="Math.html#Math">Math</a> |
| <hr> |
| </div> |
| |
| <h3 class="section">1.53 <code>sinh</code>, <code>sinhf</code>—hyperbolic sine</h3> |
| |
| <p><a name="index-sinh-144"></a><a name="index-sinhf-145"></a><strong>Synopsis</strong> |
| <pre class="example"> #include <math.h> |
| double sinh(double <var>x</var>); |
| float sinhf(float <var>x</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| <code>sinh</code> computes the hyperbolic sine of the argument <var>x</var>. |
| Angles are specified in radians. <code>sinh</code>(<var>x</var>) is defined as |
| <pre class="smallexample"> (exp(<var>x</var>) - exp(-<var>x</var>))/2 |
| </pre> |
| <p><code>sinhf</code> is identical, save that it takes and returns <code>float</code> values. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| The hyperbolic sine of <var>x</var> is returned. |
| |
| <p>When the correct result is too large to be representable (an |
| overflow), <code>sinh</code> returns <code>HUGE_VAL</code> with the |
| appropriate sign, and sets the global value <code>errno</code> to |
| <code>ERANGE</code>. |
| |
| <p>You can modify error handling for these functions with <code>matherr</code>. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| <code>sinh</code> is ANSI C. |
| <code>sinhf</code> is an extension. |
| |
| <p><br> |
| |
| </body></html> |
| |
