146 lines
5.6 KiB
HTML
146 lines
5.6 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1999-2016 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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Invariant Sections being "Funding Free Software", the Front-Cover
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(see below). A copy of the license is included in the section entitled
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"GNU Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>The GNU Fortran Compiler: AIMAG</title>
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<meta name="description" content="The GNU Fortran Compiler: AIMAG">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Intrinsic-Procedures.html#Intrinsic-Procedures" rel="up" title="Intrinsic Procedures">
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<link href="AINT.html#AINT" rel="next" title="AINT">
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="AIMAG"></a>
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<div class="header">
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<p>
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Next: <a href="AINT.html#AINT" accesskey="n" rel="next">AINT</a>, Previous: <a href="ADJUSTR.html#ADJUSTR" accesskey="p" rel="prev">ADJUSTR</a>, Up: <a href="Intrinsic-Procedures.html#Intrinsic-Procedures" accesskey="u" rel="up">Intrinsic Procedures</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="AIMAG-_002d_002d_002d-Imaginary-part-of-complex-number"></a>
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<h3 class="section">9.10 <code>AIMAG</code> — Imaginary part of complex number</h3>
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<a name="index-AIMAG"></a>
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<a name="index-DIMAG"></a>
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<a name="index-IMAG"></a>
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<a name="index-IMAGPART"></a>
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<a name="index-complex-numbers_002c-imaginary-part"></a>
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<dl compact="compact">
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<dt><em>Description</em>:</dt>
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<dd><p><code>AIMAG(Z)</code> yields the imaginary part of complex argument <code>Z</code>.
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The <code>IMAG(Z)</code> and <code>IMAGPART(Z)</code> intrinsic functions are provided
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for compatibility with <code>g77</code>, and their use in new code is
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strongly discouraged.
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</p>
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</dd>
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<dt><em>Standard</em>:</dt>
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<dd><p>Fortran 77 and later, has overloads that are GNU extensions
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</p>
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</dd>
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<dt><em>Class</em>:</dt>
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<dd><p>Elemental function
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</p>
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</dd>
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<dt><em>Syntax</em>:</dt>
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<dd><p><code>RESULT = AIMAG(Z)</code>
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</p>
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</dd>
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<dt><em>Arguments</em>:</dt>
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<dd><table>
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<tr><td width="15%"><var>Z</var></td><td width="70%">The type of the argument shall be <code>COMPLEX</code>.</td></tr>
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</table>
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</dd>
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<dt><em>Return value</em>:</dt>
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<dd><p>The return value is of type <code>REAL</code> with the
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kind type parameter of the argument.
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</p>
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</dd>
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<dt><em>Example</em>:</dt>
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<dd><div class="smallexample">
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<pre class="smallexample">program test_aimag
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complex(4) z4
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complex(8) z8
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z4 = cmplx(1.e0_4, 0.e0_4)
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z8 = cmplx(0.e0_8, 1.e0_8)
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print *, aimag(z4), dimag(z8)
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end program test_aimag
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</pre></div>
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</dd>
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<dt><em>Specific names</em>:</dt>
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<dd><table>
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<tr><td width="20%">Name</td><td width="20%">Argument</td><td width="20%">Return type</td><td width="25%">Standard</td></tr>
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<tr><td width="20%"><code>AIMAG(Z)</code></td><td width="20%"><code>COMPLEX Z</code></td><td width="20%"><code>REAL</code></td><td width="25%">GNU extension</td></tr>
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<tr><td width="20%"><code>DIMAG(Z)</code></td><td width="20%"><code>COMPLEX(8) Z</code></td><td width="20%"><code>REAL(8)</code></td><td width="25%">GNU extension</td></tr>
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<tr><td width="20%"><code>IMAG(Z)</code></td><td width="20%"><code>COMPLEX Z</code></td><td width="20%"><code>REAL</code></td><td width="25%">GNU extension</td></tr>
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<tr><td width="20%"><code>IMAGPART(Z)</code></td><td width="20%"><code>COMPLEX Z</code></td><td width="20%"><code>REAL</code></td><td width="25%">GNU extension</td></tr>
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</table>
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</dd>
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</dl>
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</body>
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</html>
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