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| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-03-04 21:21:30 -0500 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-03-04 21:21:30 -0500 |
| commit | d54fe7c1f704a63824c5bfa0ece65245572e9b27 (patch) | |
| tree | afc52015ffc2c74e0266653eecef1c8ef8ba5d91 /src/slalib/sun67.htx/node52.html | |
| download | calfuse-d54fe7c1f704a63824c5bfa0ece65245572e9b27.tar.gz | |
Initial commit
Diffstat (limited to 'src/slalib/sun67.htx/node52.html')
| -rw-r--r-- | src/slalib/sun67.htx/node52.html | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/slalib/sun67.htx/node52.html b/src/slalib/sun67.htx/node52.html new file mode 100644 index 0000000..52cca63 --- /dev/null +++ b/src/slalib/sun67.htx/node52.html @@ -0,0 +1,115 @@ +<!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_DD2TF - Days to Hour,Min,Sec</TITLE> +<META NAME="description" CONTENT="SLA_DD2TF - Days to Hour,Min,Sec"> +<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="node53.html"> +<LINK REL="previous" HREF="node51.html"> +<LINK REL="up" HREF="node13.html"> +<LINK REL="next" HREF="node53.html"> +</HEAD> +<BODY > +<BR> <HR> +<A NAME="tex2html946" HREF="node53.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html944" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html938" HREF="node51.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="tex2html947" HREF="node53.html">SLA_DE2H - to Az,El</A> +<BR> +<B>Up:</B> <A NAME="tex2html945" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html939" HREF="node51.html">SLA_DCS2C - Spherical to Cartesian</A> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<H2><A NAME="SECTION000439000000000000000">SLA_DD2TF - Days to Hour,Min,Sec</A> +<A NAME="xref_SLA_DD2TF"> </A><A NAME="SLA_DD2TF"> </A> +</H2> + <DL> +<DT><STRONG>ACTION:</STRONG> +<DD>Convert an interval in days into hours, minutes, seconds +(double precision). +<P> <DT><STRONG>CALL:</STRONG> +<DD><TT>CALL sla_DD2TF (NDP, DAYS, SIGN, IHMSF)</TT> +<P> </DL> +<P> <DL> +<DT><STRONG>GIVEN:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>NDP</EM></TD> +<TH ALIGN="LEFT"><B>I</B></TH> +<TD ALIGN="LEFT" NOWRAP>number of decimal places of seconds</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>DAYS</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>interval in days</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>RETURNED:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>SIGN</EM></TD> +<TH ALIGN="LEFT"><B>C</B></TH> +<TD ALIGN="LEFT" NOWRAP>`+' or `-'</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>IHMSF</EM></TD> +<TD ALIGN="LEFT"><B>I(4)</B></TD> +<TD ALIGN="LEFT" NOWRAP>hours, minutes, seconds, fraction</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>NOTES:</STRONG> +<DD><DL COMPACT> +<DT>1. +<DD>NDP less than zero is interpreted as zero. +<DT>2. +<DD>The largest useful value for NDP is determined by the size +of DAYS, the format of DOUBLE PRECISION floating-point numbers + on the target machine, and the risk of overflowing IHMSF(4). + For example, on a VAX computer, for DAYS up to 1D0, the available + floating-point precision corresponds roughly to NDP=12. However, + the practical limit is NDP=9, set by the capacity of the 32-bit + integer IHMSF(4). + <DT>3. +<DD>The absolute value of DAYS may exceed 1D0. In cases where it + does not, it is up to the caller to test for and handle the + case where DAYS is very nearly 1D0 and rounds up to 24 hours, + by testing for IHMSF(1)=24 and setting IHMSF(1-4) to zero. +</DL></DL> +<BR> <HR> +<A NAME="tex2html946" HREF="node53.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html944" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html938" HREF="node51.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="tex2html947" HREF="node53.html">SLA_DE2H - to Az,El</A> +<BR> +<B>Up:</B> <A NAME="tex2html945" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html939" HREF="node51.html">SLA_DCS2C - Spherical to Cartesian</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> |