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From: Roman Abramov on 28 Jan 2010 12:24
Good day! Tell me, please, is it possible to point out "important" constraints in LP problem. In my LP programm constraints can be violated (there can be now feasible point), so I want part of them never be violated. For example, I want to solve such LP problem:

F(x,y)=2*x+y-->min
s.t.
(1) x+y>=100
(2) 0<=x<=1
(3) 0<=y<=1

and also want constraints 2 and 3 never be violated. I know that different "penalties" of violation for different constraints can be introduced and can help. How can I do such thing in Matlab?

And one more question is about xlsread function. I want to get data from different sheets of one file, the file is large enough, so loading takes quite a lot of time (I use the function several times to take data from each sheet). Is there possibility to accelerate the loading if I take data from different sheets of one file? TIA
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