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asin [C++ Reference]
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<h2><a name="asin" id="asin">asin</a></h2>
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<p>
Syntax:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include <cmath></span>
<span class="kw4">double</span> asin<span class="br0">(</span> <span class="kw4">double</span> arg <span class="br0">)</span><span class="sy0">;</span></pre>
<p>
The asin() function returns the arc sine of arg, which will be in the range [-
pi/2, +pi/2]. arg should be between -1 and 1. If arg is outside this range,
asin() returns NAN and raises a floating-point exception.
</p>
<p>
C++ also provides the following overloaded forms:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include <cmath></span>
<span class="kw4">float</span> asin<span class="br0">(</span> <span class="kw4">float</span> arg <span class="br0">)</span><span class="sy0">;</span> <span class="co1">// same as asinf() in C99</span>
<span class="kw4">long</span> <span class="kw4">double</span> asin<span class="br0">(</span> <span class="kw4">long</span> <span class="kw4">double</span> arg <span class="br0">)</span><span class="sy0">;</span> <span class="co1">// same as asinl() in C99</span></pre>
<p>
Related Topics: <a href="../../c/math/acos.html" class="wikilink1" title="c:math:acos">acos</a>, <a href="../../c/math/atan.html" class="wikilink1" title="c:math:atan">atan</a>, <a href="../../c/math/atan2.html" class="wikilink1" title="c:math:atan2">atan2</a>, <a href="../../c/math/cos.html" class="wikilink1" title="c:math:cos">cos</a>, <a href="../../c/math/cosh.html" class="wikilink1" title="c:math:cosh">cosh</a>, <a href="../../c/math/sin.html" class="wikilink1" title="c:math:sin">sin</a>, <a href="../../c/math/sinh.html" class="wikilink1" title="c:math:sinh">sinh</a>, <a href="../../c/math/tan.html" class="wikilink1" title="c:math:tan">tan</a>, <a href="../../c/math/tanh.html" class="wikilink1" title="c:math:tanh">tanh</a>
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