source:
proiecte/pmake3d/make3d_original/Make3dSingleImageStanford_version0.1/third_party/opt/yalmip/extras/detn.m
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37
Last change on this file since 37 was 37, checked in by , 14 years ago | |
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File size: 401 bytes |
Rev | Line | |
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[37] | 1 | function d = detn(X) |
2 | %DETN Internal function used in construction of MAXDET formulations | |
3 | ||
4 | % Author Johan Löfberg | |
5 | % $Id: detn.m,v 1.2 2004/07/02 08:17:30 johanl Exp $ | |
6 | ||
7 | [n,m]=size(X); | |
8 | ||
9 | if n~=m | |
10 | error | |
11 | else | |
12 | if n==2 | |
13 | d = X(1,1)*X(2,2)-X(1,2)*X(2,1); | |
14 | else | |
15 | d = 0; | |
16 | for i = 1:n | |
17 | d = d + (-1)^(i+1)*X(i,1)*detn(X([1:1:i-1 i+1:1:n],2:end)); | |
18 | end | |
19 | end | |
20 | end |
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