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<h4 class="subsection">D.11.1 <code>math</code> library operators</h4>

<p>The unary operators take a single real number to a real result. They
<a name="index-trigonometric-functions-767"></a>include

<pre class="example">     ceil  floor round trunc
     sin   cos   tan   sinh   cosh   tanh
     asin  acos  atan  asinh  acosh  atanh
     exp   log   sqrt  cbrt   expm1  log1p  fabs
</pre>
   <p>The binary operators take a pair of real numbers <code>(</code><var>x</var><code>,</code><var>y</var><code>)</code> to
a single real number output. They include

<pre class="example">     pow  hypot  atan2  remainder  bus  vid  add  sub  mul  div
</pre>
   <p class="noindent">where the last four correspond to the C language operators <code>+</code>,
<code>-</code>, <code>*</code>, and <code>/</code>. The functions named <code>bus</code> and
<code>vid</code> are like the <code>sub</code> and <code>div</code> functions,
respectively, with the order of the operands reversed, as explained in
<a href="complex.html#complex">complex</a>.

   <p>The meanings of these operators are documented in the GNU <code>libc</code> reference
manual or other C language references. They follow IEEE standards including
proper handling of <code>nan</code> and infinity.

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