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<a name="hypot_002c-hypotf_002d_002d_002ddistance-from-origin"></a>
<h3 class="section">1.28 <code>hypot</code>, <code>hypotf</code>&mdash;distance from origin</h3>
<a name="index-hypot"></a>
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<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include &lt;math.h&gt;
double hypot(double <var>x</var>, double <var>y</var>);
float hypotf(float <var>x</var>, float <var>y</var>);

</pre></div>
<p><strong>Description</strong><br>
<code>hypot</code> calculates the Euclidean distance
<code>sqrt(<var>x</var>*<var>x</var> + <var>y</var>*<var>y</var>)</code>
between the origin (0,0) and a point represented by the
Cartesian coordinates (<var>x</var>,<var>y</var>).  <code>hypotf</code> differs only
in the type of its arguments and result.
</p>
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<p><strong>Returns</strong><br>
Normally, the distance value is returned.  On overflow,
<code>hypot</code> returns <code>HUGE_VAL</code> and sets <code>errno</code> to
<code>ERANGE</code>.
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<p><strong>Portability</strong><br>
<code>hypot</code> and <code>hypotf</code> are not ANSI C.  
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