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<title>The GNU Fortran Compiler: DREAL</title>

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<a name="DREAL-_002d_002d_002d-Double-real-part-function"></a>
<h3 class="section">9.89 <code>DREAL</code> &mdash; Double real part function</h3>
<a name="index-DREAL"></a>
<a name="index-complex-numbers_002c-real-part"></a>

<dl compact="compact">
<dt><em>Description</em>:</dt>
<dd><p><code>DREAL(Z)</code> returns the real part of complex variable <var>Z</var>.
</p>
</dd>
<dt><em>Standard</em>:</dt>
<dd><p>GNU extension
</p>
</dd>
<dt><em>Class</em>:</dt>
<dd><p>Elemental function
</p>
</dd>
<dt><em>Syntax</em>:</dt>
<dd><p><code>RESULT = DREAL(A)</code>
</p>
</dd>
<dt><em>Arguments</em>:</dt>
<dd><table>
<tr><td width="15%"><var>A</var></td><td width="70%">The type shall be <code>COMPLEX(8)</code>.</td></tr>
</table>

</dd>
<dt><em>Return value</em>:</dt>
<dd><p>The return value is of type <code>REAL(8)</code>.
</p>
</dd>
<dt><em>Example</em>:</dt>
<dd><div class="smallexample">
<pre class="smallexample">program test_dreal
    complex(8) :: z = (1.3_8,7.2_8)
    print *, dreal(z)
end program test_dreal
</pre></div>

</dd>
<dt><em>See also</em>:</dt>
<dd><p><a href="AIMAG.html#AIMAG">AIMAG</a>
</p>
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