You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
100 lines
2.6 KiB
HTML
100 lines
2.6 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
|
|
|
|
<!--Converted with LaTeX2HTML 2008 (1.71)
|
|
original version by: Nikos Drakos, CBLU, University of Leeds
|
|
* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
|
|
* with significant contributions from:
|
|
Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
|
|
<HTML>
|
|
<HEAD>
|
|
<TITLE>is_lower, is_upper, is_triangle, is_unit -- Format check</TITLE>
|
|
<META NAME="description" CONTENT="is_lower, is_upper, is_triangle, is_unit -- Format check">
|
|
<META NAME="keywords" CONTENT="userhtml">
|
|
<META NAME="resource-type" CONTENT="document">
|
|
<META NAME="distribution" CONTENT="global">
|
|
|
|
<META NAME="Generator" CONTENT="LaTeX2HTML v2008">
|
|
<META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css">
|
|
|
|
<LINK REL="STYLESHEET" HREF="userhtml.css">
|
|
|
|
<LINK REL="next" HREF="node31.html">
|
|
<LINK REL="previous" HREF="node29.html">
|
|
<LINK REL="up" HREF="node21.html">
|
|
<LINK REL="next" HREF="node31.html">
|
|
</HEAD>
|
|
|
|
<BODY >
|
|
<!--Navigation Panel-->
|
|
<A NAME="tex2html595"
|
|
HREF="node31.html">
|
|
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
|
|
<A NAME="tex2html591"
|
|
HREF="node21.html">
|
|
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
|
|
<A NAME="tex2html585"
|
|
HREF="node29.html">
|
|
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
|
|
<A NAME="tex2html593"
|
|
HREF="node1.html">
|
|
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
|
|
<BR>
|
|
<B> Next:</B> <A NAME="tex2html596"
|
|
HREF="node31.html">cscnv Convert</A>
|
|
<B> Up:</B> <A NAME="tex2html592"
|
|
HREF="node21.html">Sparse Matrix class</A>
|
|
<B> Previous:</B> <A NAME="tex2html586"
|
|
HREF="node29.html">is_bld, is_upd, is_asb </A>
|
|
<B> <A NAME="tex2html594"
|
|
HREF="node1.html">Contents</A></B>
|
|
<BR>
|
|
<BR>
|
|
<!--End of Navigation Panel-->
|
|
|
|
<H3><A NAME="SECTION00042900000000000000">
|
|
is_lower, is_upper, is_triangle, is_unit --
|
|
Format check</A>
|
|
</H3>
|
|
|
|
<P>
|
|
<PRE>
|
|
if (a%is_triangle()) then
|
|
if (a%is_upper()) then
|
|
if (a%is_lower()) then
|
|
if (a%is_unit()) then
|
|
</PRE>
|
|
|
|
<P>
|
|
<DL>
|
|
<DT><STRONG>Type:</STRONG></DT>
|
|
<DD>Asynchronous.
|
|
</DD>
|
|
<DT><STRONG><B>On Entry</B></STRONG></DT>
|
|
<DD>
|
|
</DD>
|
|
<DT><STRONG>a</STRONG></DT>
|
|
<DD>the sparse matrix
|
|
<BR>
|
|
Scope: <B>local</B>
|
|
<BR></DD>
|
|
</DL>
|
|
|
|
<P>
|
|
<DL>
|
|
<DT><STRONG><B>On Return</B></STRONG></DT>
|
|
<DD>
|
|
</DD>
|
|
<DT><STRONG>Function value</STRONG></DT>
|
|
<DD>A <code>logical</code> value indicating whether the
|
|
matrix is triangular; if <code>is_triangle()</code> returns <code>.true.</code>
|
|
check also if it is lower, upper and with a unit (i.e. assumed)
|
|
diagonal.
|
|
</DD>
|
|
</DL>
|
|
|
|
<P>
|
|
<BR><HR>
|
|
|
|
</BODY>
|
|
</HTML>
|