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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.2 Final//FR"><!-- Converted with LaTeX2HTML 95.1 (Fri Jan 20 1995) --><!-- by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds --><!-- Modified Simulog 03/97 --><HTML><HEAD><TITLE>1.16 DS VVPR</TITLE><LINK REL=STYLESHEET TYPE="text/css" HREF="./Modulef.css" TITLE="Modulef CSS"><meta name="description" value="1.16 DS VVPR"><meta name="keywords" value="Guide2"><meta name="resource-type" value="document"><meta name="distribution" value="global"></HEAD><BODY BGCOLOR="#FFFFFF"><P> <IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM ALT="Modulef"><A NAME=tex2html1061 HREF="node51.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html1065 HREF="node35.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html1067 HREF="node53.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html1069 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A NAME=tex2html1070 HREF="node58.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/index_motif.gif" ALT="index"></A><A HREF="../Guide2-18/node52.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide2-14/node52.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide2-10/node52.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html1068 HREF="node53.html">Part IV: Appendices</A><B>Up: </B> <A NAME=tex2html1066 HREF="node35.html">1 Description of DS by type</A><B> Prev: </B> <A NAME=tex2html1062 HREF="node51.html">1.15 DS TYNO</A><B><A HREF="node58.html" >Index</A></B><B><A HREF="node2.html" >Contents</A></B><HR SIZE=3 WIDTH="75%"><H1><A NAME=SECTION051170000000000000000>1.16 DS VVPR</A></H1><A NAME=7155> </A><P><P><P><H2><A NAME=SECTION051171000000000000000>1.16.1 Contents</A></H2><P><P><P>This DS stores information corresponding to the eigenvalues and vectors of a system.<P>DS <b> VVPR</b> is composed of five arrays of predefined order.<P><DL COMPACT><DT>Array VVP0:<DD> General information. <BR><P>This integer array contains 32 variables, consisting of a general descriptionof the job (title, date, name), of DS <b> VVPR</b> (type, level, ...), andindicates the presence or absence of array <b> VVP1</b>.<P><DL COMPACT><DT> 1:20 <tt> TITRE</tt><DD><P>the job title in 20 words of 4 characters,<P> </DL><P><DL COMPACT><DT> 21:22 <tt> DATE</tt><DD><P>the data of creation in 2 words of 4 characters,<P> </DL><P><DL COMPACT><DT> 23:28 <tt> NOMCRE</tt><DD><P>the creator's name in 6 words of 4 characters,<P> </DL><P><DL COMPACT><DT> 29 <tt> 'VVPR'</tt><DD><P>the DS type,<P> </DL><P><DL COMPACT><DT> 30 <tt> NIVEAU</tt><DD><P>the DS level,<P> </DL><P><DL COMPACT><DT> 31 <tt> ETAT</tt><DD><P>a reserved parameter,<P> </DL><P><DL COMPACT><DT> 32 <tt> NTACM</tt><DD><P>the number of supplementary arrays associated with the DS(they are described in array <b> VVP1</b>).<P> </DL><P><DT>Array VVP1:<DD> Description of any supplementary arrays. <BR><P>This array is analogous to array <b> B1</b> of DS <b> B</b> (see this DS).<P><DT>Array VVP2:<DD> General description. <BR><P>This integer array contains 7 values.<P><DL COMPACT><DT> 1 <tt> NTYVA</tt><DD><P>the type of eigenvalues,<P> </DL><P><DL COMPACT><DT> 2 <tt> NVALPR</tt><DD><P>the number of eigenvalues,<P> </DL><P><DL COMPACT><DT> 3 <tt> NTYVE</tt><DD><P>the type of eigenvectors,<P> </DL><P><DL COMPACT><DT> 4 <tt> NCVEC</tt><DD><P>the number of eigenvector components,<P> </DL><P><DL COMPACT><DT> 5 <tt> NEBER</tt><DD><P>the existence (1) or not (0) of an error bound for the eigenvalues,<P> </DL><P><DL COMPACT><DT> 6 <tt> NGT</tt><DD><P>the number of couples in array <b> VVP3</b>, <b> VVP4</b> on file,<P> </DL><P><DL COMPACT><DT> 7 <tt> NEXVEC</tt><DD><P>0 if there are no eigenvectors, 1 otherwise.<P> </DL><P><DT>Array VVP3:<DD> The eigenvalues. <BR><P>This NTYVA type array contains:<P><UL><LI> VVP3(i) eigenvalue i for i = 1, NVALPR, and<LI> if NEBER = 1, VVP3(NVALPR+i) the semi-interval of the error for i = 1, NVALPR.</UL><P><DT>Array VVP4:<DD> The eigenvectors. <BR><P>This NTYVE type array, which exists if NEXVEC equals 1, contains:<P><UL><LI> VVP4(i,j) component i of vector j, for i = 1, NCVEPR and j = 1, NVALPR.</UL><P> </DL> <P><P><H2><A NAME=SECTION051172000000000000000>1.16.2 Corresponding tools</A></H2><P><P><P><H3><A NAME=SECTION051172100000000000000> Reading and writing a DS VVPR</A></H3><P>A DS residing in core is written partially (it is a category 2 DS); only its 3 generic arraysand any associated arrays described in array <b> VVP1</b> are written to sequential file via module <b> SDECRI</b>.<P>Similarly, a DS residing on file is read and transferred partially (its 3 generic arraysand any associated arrays described in array <b> VVP1</b>) to main memoryvia module <b> SDLECT</b>; only arrays <b> VVP3</b> and <b>VVP4</b> are addressed:<P><UL><LI> When reading, only arrays <b> VVP3</b> and <b> VVP4</b> are addressed and the read is performed by the program via a READ type command.<LI> When writing, its arrays are transferred via a WRITE type command.</UL><P><P><P><H3><A NAME=SECTION051172200000000000000> Printing a DS VVPR</A></H3><P><P><P>The contents (total or partial) of a DS <b> VVPR</b> can be printed by module<b> IMVVPR</b>. Preprocessor <b> IMAGXX</b> is used when a conversational call of <b> IMVVPR</b> is desired.<P><P><P><H3><A NAME=SECTION051172300000000000000> Creation and modification modules for a DS VVPR</A></H3><P>DS <b> VVPR</b> is created using different modules corresponding to different methods(Lanczos, sub-space, etc.).<P><P><HR SIZE=3 WIDTH="75%"><IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM ALT="Modulef"><A NAME=tex2html1061 HREF="node51.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html1065 HREF="node35.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html1067 HREF="node53.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html1069 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A NAME=tex2html1070 HREF="node58.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/index_motif.gif" ALT="index"></A><A HREF="../Guide2-18/node52.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide2-14/node52.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide2-10/node52.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html1068 HREF="node53.html">Part IV: Appendices</A><B>Up: </B> <A NAME=tex2html1066 HREF="node35.html">1 Description of DS by type</A><B> Prev: </B> <A NAME=tex2html1062 HREF="node51.html">1.15 DS TYNO</A><B><A HREF="node58.html" >Index</A></B><B><A HREF="node2.html" >Contents</A></B><BR> <HR><P><ADDRESS></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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