Solving LMI using SeDuMi
minimize J s.t F0 + x1F1 + x2F2 + x3F3 + JF4 0 라는 문제가 주어졌을 때 C = [0;0;0;0;-F0(:)]; A = [-eye(4);F1(:) F2(:) F3(:) F4(:)]; b = [0 0 0 -1]; K.l = 4; K.s = 3; [primal,x] = sedumi(A,b,C,K) % x are is your variables [x1 x2 x3 x4] In more advanced cases, a modelling tool is recommended, such as YALMIP free, requires an SDP solver such as sedumi, sdpt3,dsdp,csdp,...) Your YALMIP model would be sdpvar x..
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Save a figure into PNG image / save to a TXT file
1. figure를 jpeg파일로 저장하기. fig1 = figure('Name', 'Result'... ,'Position',[100 300 900 700] ... ,'NumberTitle','off');x_min = 1; x_max = 10; x_count = 10;x = linspace(x_min, x_max, x_count);y = x.^2;plot(x, y, 'ro:'); set(fig1,'PaperPositionMode','auto')print (fig1 , '-djpeg', ['fig', num2str(123), '.jpeg']) ; set(fig,'PaperPositionMode','auto')print (fig , '-dpng', ['fig', num2str(i), '.png']) ; 2..
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