Rev | Line | |
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[37] | 1 | function Z = plus(X,Y) |
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| 2 | %display Overloaded |
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| 3 | |
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| 4 | % Author Johan Löfberg |
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| 5 | % $Id: plus.m,v 1.2 2004/09/19 21:33:49 johanl Exp $ |
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| 6 | |
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| 7 | % LOGDET + SDPVAR |
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| 8 | if isa(Y,'logdet') |
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| 9 | Z = X; |
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| 10 | X = Y; |
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| 11 | Y = Z; |
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| 12 | end |
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| 13 | |
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| 14 | if prod(size(Y))>1 |
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| 15 | error('Only scalar terms can be added to a logdet term'); |
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| 16 | end |
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| 17 | |
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| 18 | if isa(Y,'logdet') |
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| 19 | Z = X; |
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| 20 | Z.P = blkdiag(Z.P,Y.P); |
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| 21 | return |
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| 22 | end |
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| 23 | |
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| 24 | |
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| 25 | Z = X; |
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| 26 | if isempty(Z.cx) |
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| 27 | Z.cx = Y; |
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| 28 | else |
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| 29 | Z.cx = plus(Z.cx,Y); |
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| 30 | end |
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