File: MatCreateNormal.html

package info (click to toggle)
petsc 3.2.dfsg-6
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 124,660 kB
  • sloc: ansic: 342,250; cpp: 62,975; python: 32,761; fortran: 17,337; makefile: 15,867; xml: 621; objc: 594; sh: 492; java: 381; f90: 347; csh: 245
file content (41 lines) | stat: -rw-r--r-- 1,686 bytes parent folder | download
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
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD>
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>MatCreateNormal</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<A NAME="MatCreateNormal"><H1>MatCreateNormal</H1></A>
Creates a new matrix object that behaves like A'*A. 
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h" 
PetscErrorCode  MatCreateNormal(Mat A,Mat *N)
</PRE>
Collective on <A HREF="../Mat/Mat.html#Mat">Mat</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B>A  </B> -the (possibly rectangular) matrix
<br>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>N </B> -the matrix that represents A'*A
<br>
<P>

<P>
Notes: The product A'*A is NOT actually formed! Rather the new matrix
object performs the matrix-vector product by first multiplying by
A and then A'
<H3><FONT COLOR="#CC3333">C++ variants</FONT></H3><TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD> Mat MatCreateNormal(Mat mat)<TD WIDTH=20></TD><TD>-></TD><TD WIDTH=20></TD><TD>MatCreateNormal(mat,&A); return A;</TR></TD>

</TABLE>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/impls/normal/normm.c.html#MatCreateNormal">src/mat/impls/normal/normm.c</A>
<BR><A HREF="./index.html">Index of all Mat 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>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex27.c.html">src/ksp/ksp/examples/tutorials/ex27.c.html</A><BR>
</BODY></HTML>