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Topic: System of lin equations
Replies: 2   Last Post: Feb 17, 2013 2:49 PM

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 Milos Milenkovic Posts: 189 Registered: 4/4/09
System of lin equations
Posted: Feb 17, 2013 1:59 PM

Dear,
please propose (if exists) some better solution for system of eqs:
B02*X3*B02' + B112*X3*B112'+D1=0

B02=[-16793748308.175 23652919592.950 -12726767.380 -11939183757.707 -9293963266.999 15853112229.880;
-3934139187.849 10339948117.896 49760779.378 -3518222265.656 -1505201082.267 -209237514.093;
93911135361.559 -43125475374.030 12158818512.300 94370081454.219 59425975837.2318 -182581398810.019;
9356612510.074 17625849825.802 -22261602.792 1545224049.410 8437646176.161 -32311503394.635;
-6849185788.733 -26800823296.942 133458506.815 705062613.938 -7428845121.223 34081860687.483;
-4106775029.92388 10341302675.8850 49810886.5282238 -3839213780.04266 -1728685074.87572 178602748.378203];
B112=[230.654 15604273.311 -151416.549 668816.624 571175.358 -15440383.358;
84.124 5710137.048 -57100.590 251981.315 215350.743 -5648224.683;
-1313.527 -81123601.353 55363.687 -346638.725 -228412.461 81109756.783;
53.934 3675704.284 -38113.041 168021.264 143719.773 -3634286.158;
-127.200 -8526174.904 75447.828 -334246.575 -284772.285 8444990.326;
84.145 5729232.160 -58965.171 259991.224 222347.591 -5665190.933];
D1=[-0.573 -0.573 -23.965 0 -0.573 -0.573; -0.573 -0.573 -23.965 0 -0.573 -0.573; -23.965 -23.965 -3027.703 0 -23.965 -23.965;0 0 0 0 0 0;-0.573 -0.573 -23.965 0 -0.573 -0.573;-0.573 -0.573 -23.965 0 -0.573 -0.573];
with
X3=dlyap(B02, D1,[],B112);
there is a significant error.

Best,
M

Date Subject Author
2/17/13 Milos Milenkovic
2/17/13 Bruno Luong
2/17/13 Milos Milenkovic