Please help with the Inequality

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In the following code:

x = lsqlin(C,d,A,b,Aeq,beq,lb,ub,x0,options)
lb and ub are such that lb<=x<=ub.

Is there a way to change it to

lb < x < ub (strict inequalities)

Thanks

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Walter Roberson 2013-3-15

Please read the guide to tags and retag this question; see http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags

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Answer 1

Walter Roberson 2013-3-15

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Multiply the values in your lb array by (1+eps) and multiply the values in your ub array by (1-eps)

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dav 2013-3-15

my lb = [ 0 0 ] and ub = [1 1]

so even if I multiply by (1+eps) i still get the same answer !

Can you please suggest something?

Thanks

Walter Roberson 2013-3-15

You could use realmin as your lower bound. Unless, that is, it is important to be able to accept the denormalized values as well. If you need the denormalized values too, use eps(realmin) as your lower bound.

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