1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD> <link rel="canonical" href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/IS/ISDifference.html" />
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>ISDifference</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.7.5 v3.7.5 docs/manualpages/IS/ISDifference.html "><small>Report Typos and Errors</small></a></div>
<A NAME="ISDifference"><H1>ISDifference</H1></A>
Computes the difference between two index sets.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscis.h"
PetscErrorCode ISDifference(IS is1,IS is2,IS *isout)
</PRE>
Collective on <A HREF="../IS/IS.html#IS">IS</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>is1 </B></TD><TD>- first index, to have items removed from it
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>is2 </B></TD><TD>- index values to be removed
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<DT><B>isout </B> -is1 - is2
<br>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Negative values are removed from the lists. is2 may have values
that are not in is1. This requires O(imax-imin) memory and O(imax-imin)
work, where imin and imax are the bounds on the indices in is1.
<P>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../IS/ISDestroy.html#ISDestroy">ISDestroy</A>(), <A HREF="../IS/ISView.html#ISView">ISView</A>(), <A HREF="../IS/ISSum.html#ISSum">ISSum</A>(), <A HREF="../IS/ISExpand.html#ISExpand">ISExpand</A>()
<BR>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/vec/is/is/utils/isdiff.c.html#ISDifference">src/vec/is/is/utils/isdiff.c</A>
<BR><A HREF="./index.html">Index of all IS routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
</BODY></HTML>
|
