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diff --git a/src/slalib/sun67.htx/node143.html b/src/slalib/sun67.htx/node143.html new file mode 100644 index 0000000..46f3e9e --- /dev/null +++ b/src/slalib/sun67.htx/node143.html @@ -0,0 +1,133 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<!--Converted with LaTeX2HTML 97.1 (release) (July 13th, 1997) + by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds +* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan +* with significant contributions from: + Jens Lippman, Marek Rouchal, Martin Wilck and others --> +<HTML> +<HEAD> +<TITLE>SLA_PERMUT - Next Permutation</TITLE> +<META NAME="description" CONTENT="SLA_PERMUT - Next Permutation"> +<META NAME="keywords" CONTENT="sun67"> +<META NAME="resource-type" CONTENT="document"> +<META NAME="distribution" CONTENT="global"> +<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso_8859_1"> +<LINK REL="STYLESHEET" HREF="sun67.css"> +<LINK REL="next" HREF="node144.html"> +<LINK REL="previous" HREF="node142.html"> +<LINK REL="up" HREF="node13.html"> +<LINK REL="next" HREF="node144.html"> +</HEAD> +<BODY > +<BR> <HR> +<A NAME="tex2html1856" HREF="node144.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html1854" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html1848" HREF="node142.html"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif.gif"></A> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="contents_motif.gif"></A> +<BR> +<B> Next:</B> <A NAME="tex2html1857" HREF="node144.html">SLA_PERTEL - Perturbed Orbital Elements</A> +<BR> +<B>Up:</B> <A NAME="tex2html1855" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html1849" HREF="node142.html">SLA_PDQ2H - H.A. for a Given P.A.</A> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<H2><A NAME="SECTION0004130000000000000000">SLA_PERMUT - Next Permutation</A> +<A NAME="xref_SLA_PERMUT"> </A><A NAME="SLA_PERMUT"> </A> +</H2> + <DL> +<DT><STRONG>ACTION:</STRONG> +<DD>Generate the next permutation of a specified number of items. +<DT><STRONG>CALL:</STRONG> +<DD><TT>CALL sla_PERMUT (N, ISTATE, IORDER, J)</TT> +<P> </DL> +<P> <DL> +<DT><STRONG>GIVEN:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>N</EM></TD> +<TH ALIGN="LEFT"><B>I</B></TH> +<TD ALIGN="LEFT" NOWRAP>number of items: there will be N! permutations</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>ISTATE</EM></TD> +<TD ALIGN="LEFT"><B>I(N)</B></TD> +<TD ALIGN="LEFT" NOWRAP>state, ISTATE(1)=-1 to initialize</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>RETURNED:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>ISTATE</EM></TD> +<TH ALIGN="LEFT"><B>I(N)</B></TH> +<TD ALIGN="LEFT" NOWRAP>state, updated ready for next time</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>IORDER</EM></TD> +<TD ALIGN="LEFT"><B>I(N)</B></TD> +<TD ALIGN="LEFT" NOWRAP>next permutation of numbers 1,2,...,N</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>J</EM></TD> +<TD ALIGN="LEFT"><B>I</B></TD> +<TD ALIGN="LEFT" NOWRAP>status:</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> -1 = illegal N (zero or less is illegal)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> 0 = OK</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> +1 = no more permutations available</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>NOTES:</STRONG> +<DD><DL COMPACT> +<DT>1. +<DD>This routine returns, in the IORDER array, the integers 1 to N +inclusive, in an order that depends on the current contents of +the ISTATE array. Before calling the routine for the first + time, the caller must set the first element of the ISTATE array + to -1 (any negative number will do) to cause the ISTATE array + to be fully initialized. + <DT>2. +<DD>The first permutation to be generated is: + <BLOCKQUOTE>IORDER(1)=N, IORDER(2)=N-1, ..., IORDER(N)=1 + </BLOCKQUOTE> + This is also the permutation returned for the ``finished'' (J=1) case. + The final permutation to be generated is: + <BLOCKQUOTE>IORDER(1)=1, IORDER(2)=2, ..., IORDER(N)=N + </BLOCKQUOTE> + <DT>3. +<DD>If the ``finished'' (J=1) status is ignored, the routine continues + to deliver permutations, the pattern repeating every N! calls. + </DL></DL> +<BR> <HR> +<A NAME="tex2html1856" HREF="node144.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html1854" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html1848" HREF="node142.html"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif.gif"></A> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="contents_motif.gif"></A> +<BR> +<B> Next:</B> <A NAME="tex2html1857" HREF="node144.html">SLA_PERTEL - Perturbed Orbital Elements</A> +<BR> +<B>Up:</B> <A NAME="tex2html1855" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html1849" HREF="node142.html">SLA_PDQ2H - H.A. for a Given P.A.</A> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<ADDRESS> +<I>SLALIB --- Positional Astronomy Library<BR>Starlink User Note 67<BR>P. T. Wallace<BR>12 October 1999<BR>E-mail:ptw@star.rl.ac.uk</I> +</ADDRESS> +</BODY> +</HTML> |