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diff --git a/share/doc/gfortran/BESSEL_005fYN.html b/share/doc/gfortran/BESSEL_005fYN.html new file mode 100644 index 0000000..de8ed5e --- /dev/null +++ b/share/doc/gfortran/BESSEL_005fYN.html @@ -0,0 +1,161 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Copyright (C) 1999-2023 Free Software Foundation, Inc. + +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.3 or +any later version published by the Free Software Foundation; with the +Invariant Sections being "Funding Free Software", the Front-Cover +Texts being (a) (see below), and with the Back-Cover Texts being (b) +(see below). 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This function is available under the name +<code>BESYN</code> as a GNU extension. If <var>N</var> and <var>X</var> are arrays, +their ranks and shapes shall conform. +</p> +<p><code>BESSEL_YN(N1, N2, X)</code> returns an array with the Bessel functions +of the first kind of the orders <var>N1</var> to <var>N2</var>. +</p> +</dd> +<dt><em>Standard</em>:</dt> +<dd><p>Fortran 2008 and later, negative <var>N</var> is allowed as GNU extension +</p> +</dd> +<dt><em>Class</em>:</dt> +<dd><p>Elemental function, except for the transformational function +<code>BESSEL_YN(N1, N2, X)</code> +</p> +</dd> +<dt><em>Syntax</em>:</dt> +<dd><table> +<tr><td width="80%"><code>RESULT = BESSEL_YN(N, X)</code></td></tr> +<tr><td width="80%"><code>RESULT = BESSEL_YN(N1, N2, X)</code></td></tr> +</table> + +</dd> +<dt><em>Arguments</em>:</dt> +<dd><table> +<tr><td width="15%"><var>N</var></td><td width="70%">Shall be a scalar or an array of type <code>INTEGER</code> .</td></tr> +<tr><td width="15%"><var>N1</var></td><td width="70%">Shall be a non-negative scalar of type <code>INTEGER</code>.</td></tr> +<tr><td width="15%"><var>N2</var></td><td width="70%">Shall be a non-negative scalar of type <code>INTEGER</code>.</td></tr> +<tr><td width="15%"><var>X</var></td><td width="70%">Shall be a scalar or an array of type <code>REAL</code>; +for <code>BESSEL_YN(N1, N2, X)</code> it shall be scalar.</td></tr> +</table> + +</dd> +<dt><em>Return value</em>:</dt> +<dd><p>The return value is a scalar of type <code>REAL</code>. It has the same +kind as <var>X</var>. +</p> +</dd> +<dt><em>Note</em>:</dt> +<dd><p>The transformational function uses a recurrence algorithm which might, +for some values of <var>X</var>, lead to different results than calls to +the elemental function. +</p> +</dd> +<dt><em>Example</em>:</dt> +<dd><div class="smallexample"> +<pre class="smallexample">program test_besyn + real(8) :: x = 1.0_8 + x = bessel_yn(5,x) +end program test_besyn +</pre></div> + +</dd> +<dt><em>Specific names</em>:</dt> +<dd><table> +<thead><tr><th width="20%">Name</th><th width="23%">Argument</th><th width="20%">Return type</th><th width="33%">Standard</th></tr></thead> +<tr><td width="20%"><code>DBESYN(N,X)</code></td><td width="23%"><code>INTEGER N</code></td><td width="20%"><code>REAL(8)</code></td><td width="33%">GNU extension</td></tr> +<tr><td width="20%"></td><td width="23%"><code>REAL(8) X</code></td><td width="20%"></td><td width="33%"></td></tr> +</table> +</dd> +</dl> + + + +<hr> +<div class="header"> +<p> +Next: <a href="BGE.html#BGE" accesskey="n" rel="next">BGE</a>, Previous: <a href="BESSEL_005fY1.html#BESSEL_005fY1" accesskey="p" rel="previous">BESSEL_Y1</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> +</div> + + + +</body> +</html> |