Home > General-Functions > Maths > cofactorMatrix.m

cofactorMatrix

PURPOSE

% cofactor of a square matrix

SYNOPSIS

function B = cofactorMatrix(A)

DESCRIPTION

% cofactor of a square matrix
 
 B = cofactorMatrix(A)

 inv(A) = cof(A)'/det(A)   holds.
   d det(A)/ dA = cof(A)   holds.

 author:  J. Meidow, FGAN-FOM

 $Log: cof.m,v $
 Revision 1.1  2007/09/26 06:33:52  meidow
 *** empty log message ***

 adapted Wolfgang Foerstner 1/2011
 wfoerstn@uni-bonn.de

CROSS-REFERENCE INFORMATION

This function calls:

adjunctMatrix % determines adjunct matrix for a square matrix

This function is called by:

SOURCE CODE

0001 %% cofactor of a square matrix
0002 %
0003 % B = cofactorMatrix(A)
0004 %
0005 % inv(A) = cof(A)'/det(A)   holds.
0006 %   d det(A)/ dA = cof(A)   holds.
0007 %
0008 % author:  J. Meidow, FGAN-FOM
0009 %
0010 % $Log: cof.m,v $
0011 % Revision 1.1  2007/09/26 06:33:52  meidow
0012 % *** empty log message ***
0013 %
0014 % adapted Wolfgang Foerstner 1/2011
0015 % wfoerstn@uni-bonn.de
0016 
0017 function B = cofactorMatrix(A)
0018 
0019 B = adjunctMatrix(A)';
0020