relaxvalue

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relaxvalue is used to extract the relaxed numerical value of an expression after solving a relaxation.

Syntax

Y = relaxvalue(X)

Examples

Consider the following trivial relaxed problem

sdpvar x
Model = [[2 3] <= [x x^2]];
Objective = x + x^2
optimize(Model,Objective,sdpsettings('relax',1))

The variable \(x\) and the relaxed variable of \(x^2\) which will be independent in the problem will have values 2 and 3 at the optimum.

value(x)
ans =

    2.0000
    
value(x^2)
ans =

    4.0000
    
relaxvalue(x^2)
ans =

    3.0000
    

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